src/FOL/ex/if.thy
author paulson
Wed, 01 Jul 1998 17:59:25 +0200
changeset 5106 05b7c9a2ddf9
parent 0 a5a9c433f639
permissions -rw-r--r--
HOL-Real

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