src/FOL/ex/if.thy
author wenzelm
Thu, 05 Feb 1998 11:20:35 +0100
changeset 4603 53b2463ca84c
parent 0 a5a9c433f639
permissions -rw-r--r--
added param;

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