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src/FOL/ex/if.thy
author wenzelm
Tue, 27 May 1997 15:45:07 +0200
changeset 3362 0b268cff9344
parent 0 a5a9c433f639
permissions -rw-r--r--
NJ 1.09.2x as factory default!

If = FOL +
consts  if     :: "[o,o,o]=>o"
rules
        if_def "if(P,Q,R) == P&Q | ~P&R"
end
isabelle