src/FOL/fol.thy
author oheimb
Wed, 12 Nov 1997 18:58:50 +0100
changeset 4223 f60e3d2c81d3
parent 0 a5a9c433f639
permissions -rw-r--r--
added thin_refl to hyp_subst_tac

FOL = IFOL +
rules
classical "(~P ==> P) ==> P"
end