---------------------------------------------------------------------- UNWIND_CONV (unwindLib) ---------------------------------------------------------------------- UNWIND_CONV : ((term -> bool) -> conv) SYNOPSIS Unwinds device behaviour using selected line equations until no change. LIBRARY unwind DESCRIBE {UNWIND_CONV p "t1 /\ ... /\ eqn1 /\ ... /\ eqnm /\ ... /\ tn"} returns a theorem of the form: |- t1 /\ ... /\ eqn1 /\ ... /\ eqnm /\ ... /\ tn = t1' /\ ... /\ eqn1 /\ ... /\ eqnm /\ ... /\ tn' where {ti'} (for {1 <= i <= n}) is {ti} rewritten with the equations {eqni} ({1 <= i <= m}). These equations are the conjuncts for which the predicate {p} is true. The {ti} terms are the conjuncts for which {p} is false. The rewriting is repeated until no changes take place. FAILURE Never fails but may loop indefinitely. EXAMPLE #UNWIND_CONV (\tm. mem (line_name tm) [`l1`;`l2`]) # "(!(x:num). l1 x = (l2 x) - 1) /\ # (!x. f x = (l2 (x+1)) + (l1 (x+2))) /\ # (!x. l2 x = 7)";; |- (!x. l1 x = (l2 x) - 1) /\ (!x. f x = (l2(x + 1)) + (l1(x + 2))) /\ (!x. l2 x = 7) = (!x. l1 x = (l2 x) - 1) /\ (!x. f x = 7 + (7 - 1)) /\ (!x. l2 x = 7) SEEALSO unwindLib.UNWIND_ONCE_CONV, unwindLib.UNWIND_ALL_BUT_CONV, unwindLib.UNWIND_AUTO_CONV, unwindLib.UNWIND_ALL_BUT_RIGHT_RULE, unwindLib.UNWIND_AUTO_RIGHT_RULE. ----------------------------------------------------------------------