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ex/PL0.thy
author lcp
Thu, 21 Jul 1994 10:52:00 +0200
changeset 97 3f4976d8c97f
parent 91 a94029edb01f
permissions -rw-r--r--
HOL/Makefile: now test depends upon SUBST_FILES HOL/Makefile/SUBST_FILES: changed some filenames to upper case HOL/Makefile: now executes ex/ROOT.ML after Subst/ROOT.ML

(*  Title: 	HOL/ex/pl0.thy
    ID:         $Id$
    Author: 	Tobias Nipkow
    Copyright   1994  TU Muenchen

Syntax of propositional logic formulae.
*)

PL0 = HOL +
datatype
    'a pl = false | var ('a) ("#_") | "->" ('a pl,'a pl) (infixr 90)
end
Old_HOL