TRYALL : tactic -> list_tactic
STRUCTURE
SYNOPSIS
Tries to apply a tactic to every goal in a list
DESCRIPTION
If tac is a tactic, TRYALL tac is a list-tactic which, when applied to a list of goals, applies the tactic tac to each goal for which it succeeds. When tac fails on a goal, TRYALL tac has no effect on that goal.
FAILURE
The application of TRYALL to a tactic never fails. The resulting list-tactic never fails.
EXAMPLE
Where tac1 and tac2 are tactics, tac1 THEN_LT TRYALL tac2 is equivalent to tac1 THEN TRY tac2
SEEALSO
HOL  Kananaskis-14