FULL_STRUCT_CASES_TAC : thm_tactic
STRUCTURE
SYNOPSIS
A form of STRUCT_CASES_TAC that also applies the case analysis to the assumption list.
DESCRIPTION
See STRUCT_CASES_TAC.
FAILURE
Fails unless provided with a theorem that is a conjunction of (possibly multiply existentially quantified) terms which assert the equality of a variable with some given terms.
EXAMPLE
Suppose we have the goal:
  ~(l:(*)list = []) ?- (LENGTH l) > 0
then we can get rid of the universal quantifier from the inbuilt list theorem list_CASES:
   list_CASES = !l. (l = []) \/ (?t h. l = CONS h t)
and then use FULL_STRUCT_CASES_TAC. This amounts to applying the following tactic:
   FULL_STRUCT_CASES_TAC (SPEC_ALL list_CASES)
which results in the following two subgoals:
   ~(CONS h t = []) ?- (LENGTH(CONS h t)) > 0

   ~([] = []) ?- (LENGTH[]) > 0
Note that this is a rather simple case, since there are no constraints, and therefore the resulting subgoals have no extra assumptions.
USES
Generating a case split from the axioms specifying a structure.
SEEALSO
HOL  Kananaskis-10