src/FOLP/ex/if.thy
changeset 0 a5a9c433f639
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-1:000000000000 0:a5a9c433f639
       
     1 If = FOLP +
       
     2 consts  if     :: "[o,o,o]=>o"
       
     3 rules
       
     4         if_def "if(P,Q,R) == P&Q | ~P&R"
       
     5 end