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doc-src/Tutorial/Misc/ConstDefs.thy
author paulson
Wed, 14 Feb 2001 12:16:32 +0100
changeset 11115 285b31e9e026
parent 5377 efb799c5ed3c
permissions -rw-r--r--
a new theorem from Bryan Ford
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ConstDefs = Types +
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constdefs nand :: gate
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         "nand A B == ~(A & B)"
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          exor :: gate
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         "exor A B == A & ~B | ~A & B"
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end
isabelle