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doc-src/Tutorial/Misc/Exor.thy
author
paulson
Thu, 12 Oct 2000 12:15:59 +0200
changeset 10196
4d1af711cf7b
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
new I-rules r_into_rtrancl, r_into_trancl and a simpler proof
Exor = Main +
constdefs
exor :: bool => bool => bool
"exor A B == (A & ~B) | (~A & B)"
end