src/FOL/ex/if.thy
author paulson
Mon, 14 Aug 1995 13:42:27 +0200
changeset 1228 7d6b0241afab
parent 0 a5a9c433f639
permissions -rw-r--r--
updated version number to revision 4

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