isabelle: src/HOL/AxClasses/Tutorial/Xor.thy@a901bafe4578 (annotated)

1247 18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	1	(* Title: HOL/AxClasses/Tutorial/Xor.thy
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	2	ID: $Id$
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	3	Author: Markus Wenzel, TU Muenchen
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	4
2907 0e272e4c7cb2 inv -> inverse nipkow parents: 1247 diff changeset	5	Define overloaded constants "<*>", "inverse", "1" on type "bool".
1247 18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	6	*)
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	7
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	8	Xor = Group +
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	9
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	10	defs
2907 0e272e4c7cb2 inv -> inverse nipkow parents: 1247 diff changeset	11	prod_bool_def "x <*> y == x ~= (y::bool)"
0e272e4c7cb2 inv -> inverse nipkow parents: 1247 diff changeset	12	inverse_bool_def "inverse x == x::bool"
0e272e4c7cb2 inv -> inverse nipkow parents: 1247 diff changeset	13	unit_bool_def "1 == False"
1247 18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	14
18b1441fb603 Various axiomatic type class demos; wenzelm parents: diff changeset	15	end

author	wenzelm
	Mon, 29 Nov 1999 15:52:49 +0100
changeset 8039	a901bafe4578
parent 2907	0e272e4c7cb2
permissions	-rw-r--r--