author | blanchet |
Wed, 18 Jul 2012 08:44:03 +0200 | |
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permissions | -rw-r--r-- |
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(* Title: HOL/Tools/Sledgehammer/sledgehammer_fact.ML |
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Author: Jia Meng, Cambridge University Computer Laboratory and NICTA |
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Author: Jasmin Blanchette, TU Muenchen |
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Sledgehammer fact handling. |
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*) |
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signature SLEDGEHAMMER_FACT = |
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sig |
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type status = ATP_Problem_Generate.status |
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type stature = ATP_Problem_Generate.stature |
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type fact = ((unit -> string) * stature) * thm |
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type fact_override = |
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{add : (Facts.ref * Attrib.src list) list, |
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del : (Facts.ref * Attrib.src list) list, |
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only : bool} |
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val ignore_no_atp : bool Config.T |
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val instantiate_inducts : bool Config.T |
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val no_fact_override : fact_override |
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val fact_from_ref : |
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Proof.context -> unit Symtab.table -> thm list -> status Termtab.table |
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-> Facts.ref * Attrib.src list -> ((string * stature) * thm) list |
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val clasimpset_rule_table_of : Proof.context -> status Termtab.table |
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val maybe_instantiate_inducts : |
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Proof.context -> term list -> term -> (((unit -> string) * 'a) * thm) list |
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-> (((unit -> string) * 'a) * thm) list |
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val maybe_filter_no_atps : Proof.context -> ('a * thm) list -> ('a * thm) list |
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val all_facts_of : theory -> fact list |
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val nearly_all_facts : |
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Proof.context -> bool -> fact_override -> thm list -> term list -> term |
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-> fact list |
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end; |
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structure Sledgehammer_Fact : SLEDGEHAMMER_FACT = |
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struct |
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open ATP_Problem_Generate |
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open Metis_Tactic |
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open Sledgehammer_Util |
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type fact = ((unit -> string) * stature) * thm |
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type fact_override = |
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{add : (Facts.ref * Attrib.src list) list, |
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del : (Facts.ref * Attrib.src list) list, |
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only : bool} |
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val sledgehammer_prefix = "Sledgehammer" ^ Long_Name.separator |
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(* experimental features *) |
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val ignore_no_atp = |
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Attrib.setup_config_bool @{binding sledgehammer_ignore_no_atp} (K false) |
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val instantiate_inducts = |
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Attrib.setup_config_bool @{binding sledgehammer_instantiate_inducts} (K false) |
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val no_fact_override = {add = [], del = [], only = false} |
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fun needs_quoting reserved s = |
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Symtab.defined reserved s orelse |
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exists (not o Lexicon.is_identifier) (Long_Name.explode s) |
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fun make_name reserved multi j name = |
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(name |> needs_quoting reserved name ? quote) ^ |
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(if multi then "(" ^ string_of_int j ^ ")" else "") |
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fun explode_interval _ (Facts.FromTo (i, j)) = i upto j |
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| explode_interval max (Facts.From i) = i upto i + max - 1 |
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| explode_interval _ (Facts.Single i) = [i] |
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val backquote = |
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raw_explode #> map (fn "`" => "\\`" | s => s) #> implode #> enclose "`" "`" |
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(* unfolding these can yield really huge terms *) |
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val risky_defs = @{thms Bit0_def Bit1_def} |
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fun is_rec_eq lhs = Term.exists_subterm (curry (op =) (head_of lhs)) |
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fun is_rec_def (@{const Trueprop} $ t) = is_rec_def t |
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| is_rec_def (@{const ==>} $ _ $ t2) = is_rec_def t2 |
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| is_rec_def (Const (@{const_name "=="}, _) $ t1 $ t2) = is_rec_eq t1 t2 |
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| is_rec_def (Const (@{const_name HOL.eq}, _) $ t1 $ t2) = is_rec_eq t1 t2 |
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| is_rec_def _ = false |
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fun is_assum assms th = exists (fn ct => prop_of th aconv term_of ct) assms |
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fun is_chained chained_ths = member Thm.eq_thm_prop chained_ths |
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fun scope_of_thm global assms chained_ths th = |
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if is_chained chained_ths th then Chained |
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else if global then Global |
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else if is_assum assms th then Assum |
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else Local |
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val may_be_induction = |
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exists_subterm (fn Var (_, Type (@{type_name fun}, [_, T])) => |
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body_type T = @{typ bool} |
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| _ => false) |
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fun status_of_thm css_table name th = |
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(* FIXME: use structured name *) |
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if (String.isSubstring ".induct" name orelse |
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String.isSubstring ".inducts" name) andalso |
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may_be_induction (prop_of th) then |
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Induction |
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else case Termtab.lookup css_table (prop_of th) of |
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SOME status => status |
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| NONE => General |
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fun stature_of_thm global assms chained_ths css_table name th = |
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(scope_of_thm global assms chained_ths th, status_of_thm css_table name th) |
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112 |
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113 |
fun fact_from_ref ctxt reserved chained_ths css_table (xthm as (xref, args)) = |
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114 |
let |
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115 |
val ths = Attrib.eval_thms ctxt [xthm] |
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116 |
val bracket = |
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117 |
map (enclose "[" "]" o Pretty.str_of o Args.pretty_src ctxt) args |
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118 |
|> implode |
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119 |
fun nth_name j = |
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120 |
case xref of |
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121 |
Facts.Fact s => backquote s ^ bracket |
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122 |
| Facts.Named (("", _), _) => "[" ^ bracket ^ "]" |
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123 |
| Facts.Named ((name, _), NONE) => |
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124 |
make_name reserved (length ths > 1) (j + 1) name ^ bracket |
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125 |
| Facts.Named ((name, _), SOME intervals) => |
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126 |
make_name reserved true |
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127 |
(nth (maps (explode_interval (length ths)) intervals) j) name ^ |
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128 |
bracket |
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129 |
in |
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130 |
(ths, (0, [])) |
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131 |
|-> fold (fn th => fn (j, rest) => |
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132 |
let val name = nth_name j in |
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133 |
(j + 1, ((name, stature_of_thm false [] chained_ths |
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134 |
css_table name th), th) :: rest) |
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135 |
end) |
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136 |
|> snd |
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137 |
end |
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138 |
|
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139 |
(* Reject theorems with names like "List.filter.filter_list_def" or |
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140 |
"Accessible_Part.acc.defs", as these are definitions arising from packages. *) |
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141 |
fun is_package_def a = |
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142 |
let val names = Long_Name.explode a in |
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143 |
(length names > 2 andalso not (hd names = "local") andalso |
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144 |
String.isSuffix "_def" a) orelse String.isSuffix "_defs" a |
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145 |
end |
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146 |
|
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147 |
(* FIXME: put other record thms here, or declare as "no_atp" *) |
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148 |
fun multi_base_blacklist ctxt ho_atp = |
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149 |
["defs", "select_defs", "update_defs", "split", "splits", "split_asm", |
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150 |
"cases", "ext_cases", "eq.simps", "eq.refl", "nchotomy", "case_cong", |
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151 |
"weak_case_cong"] |
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152 |
|> not (ho_atp orelse (Config.get ctxt instantiate_inducts)) ? |
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153 |
append ["induct", "inducts"] |
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154 |
|> map (prefix ".") |
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155 |
|
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156 |
val max_lambda_nesting = 3 (*only applies if not ho_atp*) |
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157 |
|
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158 |
fun term_has_too_many_lambdas max (t1 $ t2) = |
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159 |
exists (term_has_too_many_lambdas max) [t1, t2] |
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160 |
| term_has_too_many_lambdas max (Abs (_, _, t)) = |
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161 |
max = 0 orelse term_has_too_many_lambdas (max - 1) t |
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162 |
| term_has_too_many_lambdas _ _ = false |
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163 |
|
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164 |
(* Don't count nested lambdas at the level of formulas, since they are |
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165 |
quantifiers. *) |
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166 |
fun formula_has_too_many_lambdas true _ _ = false (*i.e. ho_atp*) |
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167 |
| formula_has_too_many_lambdas _ Ts (Abs (_, T, t)) = |
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168 |
formula_has_too_many_lambdas false (T :: Ts) t |
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169 |
| formula_has_too_many_lambdas _ Ts t = |
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170 |
if member (op =) [HOLogic.boolT, propT] (fastype_of1 (Ts, t)) then |
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171 |
exists (formula_has_too_many_lambdas false Ts) (#2 (strip_comb t)) |
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172 |
else |
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173 |
term_has_too_many_lambdas max_lambda_nesting t |
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174 |
|
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175 |
(* The max apply depth of any "metis" call in "Metis_Examples" (on 2007-10-31) |
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176 |
was 11. *) |
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177 |
val max_apply_depth = 15 |
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178 |
|
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179 |
fun apply_depth (f $ t) = Int.max (apply_depth f, apply_depth t + 1) |
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180 |
| apply_depth (Abs (_, _, t)) = apply_depth t |
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181 |
| apply_depth _ = 0 |
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182 |
|
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183 |
fun is_formula_too_complex ho_atp t = |
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184 |
apply_depth t > max_apply_depth orelse formula_has_too_many_lambdas ho_atp [] t |
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185 |
|
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186 |
(* FIXME: Extend to "Meson" and "Metis" *) |
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187 |
val exists_sledgehammer_const = |
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188 |
exists_Const (fn (s, _) => String.isPrefix sledgehammer_prefix s) |
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189 |
|
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190 |
(* FIXME: make more reliable *) |
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191 |
val exists_low_level_class_const = |
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192 |
exists_Const (fn (s, _) => |
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193 |
s = @{const_name equal_class.equal} orelse |
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194 |
String.isSubstring (Long_Name.separator ^ "class" ^ Long_Name.separator) s) |
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195 |
|
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196 |
fun is_metastrange_theorem th = |
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197 |
case head_of (concl_of th) of |
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198 |
Const (s, _) => (s <> @{const_name Trueprop} andalso |
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199 |
s <> @{const_name "=="}) |
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200 |
| _ => false |
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201 |
|
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202 |
fun is_that_fact th = |
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203 |
String.isSuffix (Long_Name.separator ^ Obtain.thatN) (Thm.get_name_hint th) |
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204 |
andalso exists_subterm (fn Free (s, _) => s = Name.skolem Auto_Bind.thesisN |
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205 |
| _ => false) (prop_of th) |
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206 |
|
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207 |
fun is_theorem_bad_for_atps ho_atp exporter thm = |
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208 |
is_metastrange_theorem thm orelse |
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209 |
(not exporter andalso |
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210 |
let val t = prop_of thm in |
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211 |
is_formula_too_complex ho_atp t orelse exists_type type_has_top_sort t orelse |
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212 |
exists_sledgehammer_const t orelse exists_low_level_class_const t orelse |
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213 |
is_that_fact thm |
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214 |
end) |
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215 |
|
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216 |
fun hackish_string_for_term ctxt t = |
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217 |
Print_Mode.setmp (filter (curry (op =) Symbol.xsymbolsN) |
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218 |
(print_mode_value ())) (Syntax.string_of_term ctxt) t |
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|> String.translate (fn c => if Char.isPrint c then str c else "") |
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|> simplify_spaces |
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221 |
|
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(* This is a terrible hack. Free variables are sometimes coded as "M__" when |
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223 |
they are displayed as "M" and we want to avoid clashes with these. But |
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sometimes it's even worse: "Ma__" encodes "M". So we simply reserve all |
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prefixes of all free variables. In the worse case scenario, where the fact |
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won't be resolved correctly, the user can fix it manually, e.g., by naming |
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the fact in question. Ideally we would need nothing of it, but backticks |
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simply don't work with schematic variables. *) |
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fun all_prefixes_of s = |
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map (fn i => String.extract (s, 0, SOME i)) (1 upto size s - 1) |
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231 |
|
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fun close_form t = |
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(t, [] |> Term.add_free_names t |> maps all_prefixes_of) |
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|> fold (fn ((s, i), T) => fn (t', taken) => |
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let val s' = singleton (Name.variant_list taken) s in |
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((if fastype_of t' = HOLogic.boolT then HOLogic.all_const |
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else Logic.all_const) T |
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$ Abs (s', T, abstract_over (Var ((s, i), T), t')), |
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s' :: taken) |
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240 |
end) |
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(Term.add_vars t [] |> sort_wrt (fst o fst)) |
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|> fst |
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|
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fun clasimpset_rule_table_of ctxt = |
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let |
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val thy = Proof_Context.theory_of ctxt |
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val atomize = HOLogic.mk_Trueprop o Object_Logic.atomize_term thy |
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fun add stature normalizers get_th = |
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fold (fn rule => |
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let |
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val th = rule |> get_th |
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val t = |
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th |> Thm.maxidx_of th > 0 ? zero_var_indexes |> prop_of |
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254 |
in |
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fold (fn normalize => Termtab.update (normalize t, stature)) |
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256 |
(I :: normalizers) |
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257 |
end) |
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258 |
val {safeIs, (* safeEs, *) hazIs, (* hazEs, *) ...} = |
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ctxt |> claset_of |> Classical.rep_cs |
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val intros = Item_Net.content safeIs @ Item_Net.content hazIs |
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261 |
(* Add once it is used: |
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262 |
val elims = |
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263 |
Item_Net.content safeEs @ Item_Net.content hazEs |
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|> map Classical.classical_rule |
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265 |
*) |
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val simps = ctxt |> simpset_of |> dest_ss |> #simps |
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val specs = ctxt |> Spec_Rules.get |
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val (rec_defs, nonrec_defs) = |
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specs |> filter (curry (op =) Spec_Rules.Equational o fst) |
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|> maps (snd o snd) |
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|> filter_out (member Thm.eq_thm_prop risky_defs) |
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|> List.partition (is_rec_def o prop_of) |
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val spec_intros = |
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specs |> filter (member (op =) [Spec_Rules.Inductive, |
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275 |
Spec_Rules.Co_Inductive] o fst) |
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|> maps (snd o snd) |
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277 |
in |
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278 |
Termtab.empty |> add Simp [atomize] snd simps |
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279 |
|> add Simp [] I rec_defs |
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280 |
|> add Def [] I nonrec_defs |
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281 |
(* Add once it is used: |
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282 |
|> add Elim [] I elims |
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283 |
*) |
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284 |
|> add Intro [] I intros |
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285 |
|> add Inductive [] I spec_intros |
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286 |
end |
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287 |
|
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288 |
fun uniquify xs = |
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289 |
Termtab.fold (cons o snd) |
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290 |
(fold (Termtab.update o `(prop_of o snd)) xs Termtab.empty) [] |
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291 |
|
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292 |
fun struct_induct_rule_on th = |
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293 |
case Logic.strip_horn (prop_of th) of |
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294 |
(prems, @{const Trueprop} |
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295 |
$ ((p as Var ((p_name, 0), _)) $ (a as Var (_, ind_T)))) => |
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296 |
if not (is_TVar ind_T) andalso length prems > 1 andalso |
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297 |
exists (exists_subterm (curry (op aconv) p)) prems andalso |
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298 |
not (exists (exists_subterm (curry (op aconv) a)) prems) then |
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299 |
SOME (p_name, ind_T) |
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300 |
else |
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301 |
NONE |
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302 |
| _ => NONE |
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303 |
|
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304 |
fun instantiate_induct_rule ctxt concl_prop p_name ((name, stature), th) ind_x = |
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305 |
let |
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306 |
fun varify_noninducts (t as Free (s, T)) = |
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307 |
if (s, T) = ind_x orelse can dest_funT T then t else Var ((s, 0), T) |
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308 |
| varify_noninducts t = t |
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309 |
val p_inst = |
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310 |
concl_prop |> map_aterms varify_noninducts |> close_form |
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311 |
|> lambda (Free ind_x) |
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312 |
|> hackish_string_for_term ctxt |
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313 |
in |
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314 |
((fn () => name () ^ "[where " ^ p_name ^ " = " ^ quote p_inst ^ "]", |
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315 |
stature), th |> read_instantiate ctxt [((p_name, 0), p_inst)]) |
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316 |
end |
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317 |
|
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318 |
fun type_match thy (T1, T2) = |
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319 |
(Sign.typ_match thy (T2, T1) Vartab.empty; true) |
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320 |
handle Type.TYPE_MATCH => false |
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321 |
|
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322 |
fun instantiate_if_induct_rule ctxt stmt stmt_xs (ax as (_, th)) = |
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323 |
case struct_induct_rule_on th of |
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324 |
SOME (p_name, ind_T) => |
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325 |
let val thy = Proof_Context.theory_of ctxt in |
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326 |
stmt_xs |> filter (fn (_, T) => type_match thy (T, ind_T)) |
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|
327 |
|> map_filter (try (instantiate_induct_rule ctxt stmt p_name ax)) |
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328 |
end |
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|
329 |
| NONE => [ax] |
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|
330 |
|
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|
331 |
fun external_frees t = |
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|
332 |
[] |> Term.add_frees t |> filter_out (can Name.dest_internal o fst) |
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|
333 |
|
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|
334 |
fun maybe_instantiate_inducts ctxt hyp_ts concl_t = |
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|
335 |
if Config.get ctxt instantiate_inducts then |
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|
336 |
let |
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|
337 |
val thy = Proof_Context.theory_of ctxt |
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|
338 |
val ind_stmt = |
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|
339 |
(hyp_ts |> filter_out (null o external_frees), concl_t) |
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|
340 |
|> Logic.list_implies |> Object_Logic.atomize_term thy |
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|
341 |
val ind_stmt_xs = external_frees ind_stmt |
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|
342 |
in maps (instantiate_if_induct_rule ctxt ind_stmt ind_stmt_xs) end |
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|
343 |
else |
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|
344 |
I |
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|
345 |
|
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|
346 |
fun maybe_filter_no_atps ctxt = |
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|
347 |
not (Config.get ctxt ignore_no_atp) ? filter_out (No_ATPs.member ctxt o snd) |
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|
348 |
|
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|
349 |
fun all_facts ctxt ho_atp reserved exporter add_ths chained_ths css_table = |
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|
350 |
let |
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|
351 |
val thy = Proof_Context.theory_of ctxt |
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|
352 |
val global_facts = Global_Theory.facts_of thy |
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|
353 |
val local_facts = Proof_Context.facts_of ctxt |
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|
354 |
val named_locals = local_facts |> Facts.dest_static [] |
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|
355 |
val assms = Assumption.all_assms_of ctxt |
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|
356 |
fun is_good_unnamed_local th = |
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|
357 |
not (Thm.has_name_hint th) andalso |
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|
358 |
forall (fn (_, ths) => not (member Thm.eq_thm_prop ths th)) named_locals |
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|
359 |
val unnamed_locals = |
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|
360 |
union Thm.eq_thm_prop (Facts.props local_facts) chained_ths |
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|
361 |
|> filter is_good_unnamed_local |> map (pair "" o single) |
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|
362 |
val full_space = |
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|
363 |
Name_Space.merge (Facts.space_of global_facts, Facts.space_of local_facts) |
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|
364 |
fun add_facts global foldx facts = |
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|
365 |
foldx (fn (name0, ths) => |
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|
366 |
if not exporter andalso name0 <> "" andalso |
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changeset
|
367 |
forall (not o member Thm.eq_thm_prop add_ths) ths andalso |
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changeset
|
368 |
(Facts.is_concealed facts name0 orelse |
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changeset
|
369 |
(not (Config.get ctxt ignore_no_atp) andalso |
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|
370 |
is_package_def name0) orelse |
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changeset
|
371 |
exists (fn s => String.isSuffix s name0) |
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changeset
|
372 |
(multi_base_blacklist ctxt ho_atp)) then |
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changeset
|
373 |
I |
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changeset
|
374 |
else |
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changeset
|
375 |
let |
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changeset
|
376 |
val multi = length ths > 1 |
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changeset
|
377 |
val backquote_thm = |
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changeset
|
378 |
backquote o hackish_string_for_term ctxt o close_form o prop_of |
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changeset
|
379 |
fun check_thms a = |
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changeset
|
380 |
case try (Proof_Context.get_thms ctxt) a of |
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|
381 |
NONE => false |
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changeset
|
382 |
| SOME ths' => eq_list Thm.eq_thm_prop (ths, ths') |
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changeset
|
383 |
in |
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diff
changeset
|
384 |
pair 1 |
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changeset
|
385 |
#> fold (fn th => fn (j, (multis, unis)) => |
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changeset
|
386 |
(j + 1, |
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parents:
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diff
changeset
|
387 |
if not (member Thm.eq_thm_prop add_ths th) andalso |
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parents:
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diff
changeset
|
388 |
is_theorem_bad_for_atps ho_atp exporter th then |
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changeset
|
389 |
(multis, unis) |
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diff
changeset
|
390 |
else |
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parents:
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diff
changeset
|
391 |
let |
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diff
changeset
|
392 |
val new = |
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diff
changeset
|
393 |
(((fn () => |
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diff
changeset
|
394 |
if name0 = "" then |
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diff
changeset
|
395 |
th |> backquote_thm |
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parents:
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diff
changeset
|
396 |
else |
6cdcfbddc077
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diff
changeset
|
397 |
[Facts.extern ctxt facts name0, |
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changeset
|
398 |
Name_Space.extern ctxt full_space name0, |
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changeset
|
399 |
name0] |
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parents:
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diff
changeset
|
400 |
|> find_first check_thms |
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parents:
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diff
changeset
|
401 |
|> (fn SOME name => |
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diff
changeset
|
402 |
make_name reserved multi j name |
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parents:
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diff
changeset
|
403 |
| NONE => "")), |
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parents:
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diff
changeset
|
404 |
stature_of_thm global assms chained_ths |
6cdcfbddc077
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parents:
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diff
changeset
|
405 |
css_table name0 th), th) |
6cdcfbddc077
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parents:
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diff
changeset
|
406 |
in |
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parents:
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diff
changeset
|
407 |
if multi then (new :: multis, unis) |
6cdcfbddc077
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parents:
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diff
changeset
|
408 |
else (multis, new :: unis) |
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parents:
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diff
changeset
|
409 |
end)) ths |
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diff
changeset
|
410 |
#> snd |
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diff
changeset
|
411 |
end) |
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parents:
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diff
changeset
|
412 |
in |
6cdcfbddc077
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parents:
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diff
changeset
|
413 |
(* The single-name theorems go after the multiple-name ones, so that single |
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parents:
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diff
changeset
|
414 |
names are preferred when both are available. *) |
6cdcfbddc077
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parents:
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diff
changeset
|
415 |
([], []) |> add_facts false fold local_facts (unnamed_locals @ named_locals) |
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changeset
|
416 |
|> add_facts true Facts.fold_static global_facts global_facts |
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|
417 |
|> op @ |
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diff
changeset
|
418 |
end |
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parents:
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diff
changeset
|
419 |
|
6cdcfbddc077
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parents:
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diff
changeset
|
420 |
fun all_facts_of thy = |
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diff
changeset
|
421 |
let val ctxt = Proof_Context.init_global thy in |
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diff
changeset
|
422 |
all_facts ctxt false Symtab.empty true [] [] |
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parents:
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diff
changeset
|
423 |
(clasimpset_rule_table_of ctxt) |
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diff
changeset
|
424 |
|> rev (* try to restore the original order of facts, for MaSh *) |
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changeset
|
425 |
end |
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parents:
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diff
changeset
|
426 |
|
48292 | 427 |
fun nearly_all_facts ctxt ho_atp {add, del, only} chained_ths hyp_ts concl_t = |
48250
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further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
428 |
if only andalso null add then |
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
429 |
[] |
1065c307fafe
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blanchet
parents:
diff
changeset
|
430 |
else |
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
431 |
let |
48292 | 432 |
val chained_ths = |
433 |
chained_ths |
|
434 |
|> maps (fn th => insert Thm.eq_thm_prop (zero_var_indexes th) [th]) |
|
48250
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further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
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parents:
diff
changeset
|
435 |
val reserved = reserved_isar_keyword_table () |
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further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
436 |
val css_table = clasimpset_rule_table_of ctxt |
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
437 |
in |
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
438 |
(if only then |
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further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
439 |
maps (map (fn ((name, stature), th) => ((K name, stature), th)) |
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
440 |
o fact_from_ref ctxt reserved chained_ths css_table) add |
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
441 |
else |
48292 | 442 |
let val (add, del) = pairself (Attrib.eval_thms ctxt) (add, del) in |
443 |
all_facts ctxt ho_atp reserved false add chained_ths css_table |
|
444 |
|> filter_out (member Thm.eq_thm_prop del o snd) |
|
445 |
|> maybe_filter_no_atps ctxt |
|
446 |
end) |
|
48250
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further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
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parents:
diff
changeset
|
447 |
|> maybe_instantiate_inducts ctxt hyp_ts concl_t |
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further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
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parents:
diff
changeset
|
448 |
|> uniquify |
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parents:
diff
changeset
|
449 |
end |
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
blanchet
parents:
diff
changeset
|
450 |
|
1065c307fafe
further ML structure split to permit finer-grained loading/reordering (problem to solve: MaSh needs most of Sledgehammer)
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parents:
diff
changeset
|
451 |
end; |