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doc-src/Tutorial/Misc/Exor.thy
author
wenzelm
Wed, 29 Sep 1999 13:54:31 +0200
changeset 7640
6b7daae5d316
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
added witness_sorts, univ_witness; removed nonempty_sort;
Exor = Main +
constdefs
exor :: bool => bool => bool
"exor A B == (A & ~B) | (~A & B)"
end