Structure Canon

(* -------------------------------------------------------------------------
 * Canonical forms of Prop. and FOL expressions.
 * ------------------------------------------------------------------------- *)

signature Canon =
sig

 type term = Term.term
 type thm = Thm.thm
 type conv = Abbrev.conv

    val ONEWAY_SKOLEM_CONV : term list -> conv
    val NNF_CONV : conv -> bool -> conv
    val NNF_SKOLEM_CONV : conv -> bool -> conv
    val DISJPATH_CONV : term -> thm
    val RATSKOL : thm -> thm
    val SKELIM : term list -> thm -> thm
    val REFUTE : conv -> conv -> bool -> conv -> conv
    val CONV_THEN_REFUTE: conv -> conv -> conv
    val PRENEX_CONV : conv
    val DEPTH_BINOP_CONV : term -> conv -> conv
    val BODY_CONV : conv -> conv
    val PROP_CNF_CONV : conv
    val PROP_DNF_CONV : conv
    val CNF_CONV : conv
    val DNF_CONV : conv
    val CNF_THEN_REFUTE : (thm list -> thm) -> conv
    val CNF_REFUTE : conv -> conv -> (thm list -> thm) -> conv
    val CONV_OF_PROVER : conv -> thm list -> conv

    val FOL_CONV : conv
    val UNLAMB_CONV : conv
    val EQ_ABS_CONV : conv

    val latest :  (thm * thm * term) option ref

end (* sig *)

HOL 4, Kananaskis-13