converted ex with curried function application

converted Subst with curried function application

changed syntax of Unity ("()" instead of "<>")

converted IOA with curried function application

changed syntax of "if"

fixed two severe bugs in calc_xrules and case_rule

Corrected a silly old bug in merge_tsigs. Rewrote a lot of Nimmermann's code.

Added a few thms to nat_ss and list_ss

Removed bugs which occurred due to new generation mechanism for type variables

Removed exception handlers, as they are now in ZF/Makefile.

removed print_msg parameter of infer_types

Now mentions Coind

Removed exception handlers, as they are now in ZF/Makefile.

Now calls exit_use instead of use, for prompt failure if errors are detected.

Declares the function exit_use to behave like use but fail if errors are detected. It can be used in all Makefiles except Pure, which will write the exception handler explicitly ("exit" will have been declared already).

Now the "use" call has an exception handler, for prompt failure if errors are detected.

Now calls exit_use instead of use, for prompt failure if errors are detected.

Removed an old bug which made some simultaneous instantiations fail if they were given in the "wrong" order. Rewrote sign/infer_types. Fixed some comments.

added exit 1

Removed superfluous type constraint

Changed treatment of during type inference internally generated type variables. 1. They are renamed to 'a, 'b, 'c etc away from a given set of used names. 2. They are either frozen (turned into TFrees) or left schematic (TVars) depending on a parameter. In goals they are frozen, for instantiations they are left schematic.

Added type constraints to enforce correct choice of variable names.

Put freeze into the signature TACTIC for export

Removed "localize"; instead, proofs refer to their own assumptions.

Commented isof(c,t)

Added dependencies on ../Provers/hypsubst.ML and removed those on ../Provers/ind.ML

Replaced read by read_cterm.

Enforced partial evaluation of mk_case_split_tac.

Enforced partial evaluation of mk_case_split_tac

Added dependencies on files in Provers

Added pretty-printing coments

*** empty log message ***

*** empty log message ***

Hoare logic

Changed Univ to Datatype in parents

Replaced rules by defs. Also got rid of tyconstU by including TyConst in the datatype's universe

Replaced rules by defs

Got rid of exvarU and constU by including ExVar and Const in various datatype universes.

Deleted constQU, exvarQU, expQU by including Const, ExpVar, Exp in Value.thy's codatatype declaration.

Replaced rules by defs

Moved declarations of @QSUM and <*> to a syntax section. Changed print_translation because <*> is now an infix.

Moved declaration of ~= to a syntax section

replaced Pure by ProtoPure

fixed a bug in infer_types/exn_type_msg

new version of HOL/Integ with curried function application

new version of HOL/IMP with curried function application

new version of HOL with curried function application

added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)

added declaration of syntactic const "_abs";

Added initial /bin/csh line and comments

No longer calls maketest; instead, the Makefile writes the file test.

Uses "suffix substitution" to shorten macro definitions.

Re-organised to perform the tests independently. Now test is defined in terms of separate targets IMP, ex, etc. If ISABELLECOMP is set wrongly then "exit 1" causes the Make to fail. Defines the macro "LOGIC" to refer to the right command for running the object-logic. Uses "suffix substitution" to shorten macro definitions.

New example by Jacob Frost, tidied by lcp

New example by Jacob Frost, tidied by lcp

Now prove_goalw_cterm calls print_sign_exn_unit, so that the rest of the error message ("The exception above was raised for...") will appear. And print_exn calls print_sign_exn_unit so that it can re-raise the SAME exception.