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src/FOL/ex/if.thy
author paulson
Mon, 20 Mar 2000 18:25:35 +0100
changeset 8529 4656e8312ba9
parent 0 a5a9c433f639
permissions -rw-r--r--
tidied

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