doc-src/ERRATA.txt
author lcp
Wed May 03 11:58:40 1995 +0200 (1995-05-03)
changeset 1083 53a0667e1cd2
parent 872 9b7236d774bd
child 1117 839ab9c054f6
permissions -rw-r--r--
Updates involving defs, addss, etc.
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$Id$
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ERRATA in the book "Isabelle: A Generic Theorem Prover"
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by Lawrence C. Paulson (contributions by Tobias Nipkow)
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Some of these errors are typographical but most of them are due to continuing
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changes to Isabelle.
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Thanks to Sara Kalvala, Tobias Nipkow
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INTRODUCTION TO ISABELLE
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Advanced Methods
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page 46: the theory sections can appear in any order
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page 48: theories may now contain a separate definition part
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page 52, middle: the declaration "types bool,nat" should be "types bool nat"
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page 57, bottom: should be addsimps in 
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	val add_ss = FOL_ss addrews [add_0, add_Suc]
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ISABELLE REFERENCE MANUAL
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Introduction
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page 67: show_brackets is another flag, controlling display of bracketting
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Tactics
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page 85: subgoals_tac is another tactic, for multiple calls to subgoal_tac
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Theories
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page 117: the three lines of ML shown can be abbreviated to just
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	init_thy_reader();
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page 118: extend_theory has been replaced by numerous functions for adding
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types, constants, axioms, etc.
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Defining Logics
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page 127: type constraints ("::") now have a very low priority of 4.
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As in ML, they must usually be enclosed in paretheses.
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Syntax Transformations
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page 145, line -5: delete repeated "the" in "before the the .thy file"
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Simplification
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page 157 display: Union operator is too big
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page 158, "!": Isabelle now permits more general left-hand sides, so called
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higher-order patterns.
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Classical reasoner
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page 176: Classical sets may specify a "wrapper tactical", which can be used
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to define addss.  The package also provides tactics slow_tac, slow_best_tac,
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depth_tac and deepen_tac.
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ISABELLE'S OBJECT-LOGICS
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First-Order Logic
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pages 191, 196: FOL_dup_cs is now deleted (use deepen_tac FOL_cs instead)
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Zermelo-Fraenkel Set Theory
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page 204: type i has class term, not (just) logic
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page 209: axioms have been renamed:
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	union_iff is now Union_iff
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	power_set is now Pow_iff
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page 215, bottom of figure 17.10: DiffD2 is now  "c : A - B ==> c ~: B"
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page 215, bottom: rules mem_anti_sym and mem_anti_refl are now mem_asym and
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mem_irrefl
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page 222, top: missing braces in qconverse_def (around right-hand side)
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and QSigma_def (around <x;y>)
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page 223, top: lfp_def, gfp_def have missing braces around the argument of
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Inter, Union
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page 228: now there is also a theory of cardinal numbers and some
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developments involving the Axiom of Choice.
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page 229: now there is another examples directory, IMP (a semantics
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equivalence proof for an imperative language)
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Higher-Order Logic
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page 243: Pow is a new constant of type 'a set => 'a set set
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page 246: Pow is defined by   Pow(A) == {B. B <= A}
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empty_def should be  {} == {x.False}
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page 248: Pow has the rules
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	PowI     A<=B ==> A: Pow(B)
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	PowD     A: Pow(B) ==> A<=B
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page 251: split now has type [['a,'b] => 'c, 'a * 'b] => 'c
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Definition modified accordingly
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page 252: sum_case now has type ['a=>'c,'b=>'c, 'a+'b] =>'c
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Definition and rules modified accordingly
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page 252: HOL_dup_cs is now deleted (use deepen_tac HOL_cs instead)
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page 254: nat_case now has type ['a, nat=>'a, nat] =>'a
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Definition modified accordingly
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page 256,258: list_case now takes the list as its last argument, not the
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first.
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page 259: HOL theory files may now include datatype declarations, primitive
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recursive function definitions, and (co)inductive definitions.  (These new
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sections are available separately as the file ml/HOL-extensions.dvi.gz,
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host ftp.cl.cam.ac.uk.)
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page 259: now there is another examples directory, IMP (a semantics
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equivalence proof for an imperative language)