src/FOLP/ex/if.thy
author paulson
Wed, 08 Jan 1997 15:17:25 +0100
changeset 2495 82ec47e0a8d3
parent 0 a5a9c433f639
permissions -rw-r--r--
New discussion of implicit simpsets & clasets
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If = FOLP +
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consts  if     :: "[o,o,o]=>o"
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rules
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        if_def "if(P,Q,R) == P&Q | ~P&R"
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end