UNWIND_AUTO_CONV : conv
STRUCTURE
unwindLib
SYNOPSIS
Automatic unwinding of equations defining wire values in a standard device specification.
LIBRARY
unwind
DESCRIPTION
UNWIND_AUTO_CONV "?l1 ... lm. t1 /\ ... /\ tn" returns a theorem of the form: 
   |- (?l1 ... lm. t1 /\ ... /\ tn) = (?l1 ... lm. t1' /\ ... /\ tn')
where tj' is tj rewritten with equations selected from the ti’s.

The function decides which equations to use for rewriting by performing a loop analysis on the graph representing the dependencies of the lines. By this means the term can be unwound as much as possible without the risk of looping. The user is left to deal with the recursive equations.

FAILURE
Fails if there is more than one equation for any line variable.
EXAMPLE
#UNWIND_AUTO_CONV
# "(!(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 = 7 - 1) /\ (!x. f x = 7 + (7 - 1)) /\ (!x. l2 x = 7)
SEEALSO
UNWIND_ONCE_CONV, UNWIND_CONV, UNWIND_ALL_BUT_CONV, UNWIND_ALL_BUT_RIGHT_RULE, UNWIND_AUTO_RIGHT_RULE
HOL  Kananaskis-14