20060704 
berghofe 
20060704 
Implemented proofs of equivariance and finite support
for graph of recursion combinator.

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20060613 
wenzelm 
20060613 
ProjectRule now context dependent;

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20060612 
berghofe 
20060612 
Completely rewrote code for defining graph of recursion combinator.

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20060609 
berghofe 
20060609 
 Changed naming scheme: names of "internal" constructors now have
"_Rep" as suffix  no need to set unique_names to false any longer
 Cleaned up a bit (removed occurrences of strip_option and replace_types')

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20060524 
berghofe 
20060524 
Extended strong induction rule with additional
freshness constraints.

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20060516 
wenzelm 
20060516 
Sign.certify_sort;

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20060513 
wenzelm 
20060513 
unchecked definitions;

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20060428 
berghofe 
20060428 
Renamed "nominal" theory to "Nominal".

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20060427 
berghofe 
20060427 
SplitAt > chop

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20060410 
berghofe 
20060410 
Adapted to changed type of add_typedef_i.

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20060323 
berghofe 
20060323 
Replaced iteration combinator by recursion combinator.

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20060315 
berghofe 
20060315 
add_inst_arity_i renamed to prove_arity.

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20060313 
berghofe 
20060313 
First version of function for defining graph of iteration combinator.

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20060224 
berghofe 
20060224 
Reverted to old interface of AxClass.add_inst_arity(_i)

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20060224 
berghofe 
20060224 
Adapted to Florian's recent changes to the AxClass package.

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20060123 
krauss 
20060123 
Updated to Isabelle 20060123

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20060119 
berghofe 
20060119 
Use generic Simplifier.simp_add attribute instead
of Simplifier.simp_add_global.

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20060111 
berghofe 
20060111 
Implemented proof of (strong) induction rule.

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20060105 
wenzelm 
20060105 
provide projections of induct_weak, induct_unsafe;

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20060105 
urbanc 
20060105 
changed the name of the type "nOption" to "noption".

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20051210 
urbanc 
20051210 
changed the types in accordance with Florian's changes

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20051208 
berghofe 
20051208 
Adapted to new type of PureThy.add_defs_i.

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20051205 
berghofe 
20051205 
Adapted to new type of store_thmss(_atts).

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20051130 
berghofe 
20051130 
Changed order of predicate arguments and quantifiers in strong induction rule.

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20051129 
berghofe 
20051129 
Corrected atom class constraints in strong induction rule.

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20051126 
berghofe 
20051126 
Corrected treatment of nonrecursive abstraction types.

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20051125 
urbanc 
20051125 
added fsub.thy (poplmark challenge) to the examples
directory.

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20051125 
berghofe 
20051125 
Fixed problem with strong induction theorem for datatypes containing
no atom types (ind_sort was the empty sort in this case).

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20051110 
urbanc 
20051110 
called the induction principle "unsafe" instead of "test".

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20051107 
berghofe 
20051107 
Added strong induction theorem (currently only axiomatized!).

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20051107 
urbanc 
20051107 
added thms perm, distinct and fresh to the simplifier.
One would liket to add also inject, but this causes
problems with "congruences" like
Lam [a].t1 = Lam [b].t2
P (Lam [a].t1)

P (Lam [b].t2)
because the equation "Lam [a].t1 = Lam [b].t2" would simplify
to "[a].t1 = [b].t2" and then the goal is not true just by
simplification.

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20051102 
berghofe 
20051102 
Moved atom stuff to new file nominal_atoms.ML

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20051102 
urbanc 
20051102 
 completed the list of thms for supp_atm
 cleaned up the way how thms are collected under single names

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20051102 
berghofe 
20051102 
Added code for proving that new datatype has finite support.

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20051102 
urbanc 
20051102 
added the collection of lemmas "supp_at"

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20051029 
urbanc 
20051029 
1) have adjusted the swapping of the result type
in add_datatype_i
2) have replaced map_nth_elem by Library.nth_map
(there seems to be a clash with an existing
nth_map somewhere  therefore the "Library")

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20051028 
urbanc 
20051028 
fixed case names in the weak induction principle and
changed name from "induct" to "induct_weak"

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20051028 
berghofe 
20051028 
Implemented proof of weak induction theorem.

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20051028 
berghofe 
20051028 
Removed legacy prove_goalw_cterm command.

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20051017 
berghofe 
20051017 
Improved proof of injectivity theorems to make it work on
"ordinary" function types as well.

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20051017 
berghofe 
20051017 
Fixed bug in proof of support theorem (it failed on constructors with no arguments).

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20051017 
berghofe 
20051017 
Implemented proofs for support and freshness theorems.

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20051017 
berghofe 
20051017 
Initial revision.

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