val rewrite_simpl : Cic.term -> unit
val rewrite_back_simpl : Cic.term -> unit
val replace : goal_input:Cic.term -> input:Cic.term -> unit
val rewrite_simpl : Cic.term -> unit
val rewrite_back_simpl : Cic.term -> unit
val replace : goal_input:Cic.term -> input:Cic.term -> unit