Tue, 20 Feb 2001 18:47:27 +0100 oheimb added image_cong to default congs of recdef
Tue, 20 Feb 2001 18:47:25 +0100 oheimb added add_arith (just as hint by now)
Tue, 20 Feb 2001 18:47:22 +0100 oheimb added rearrange_prems
Tue, 20 Feb 2001 18:47:06 +0100 oheimb debugging: replaced gen_all by forall_elim_vars_safe
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