wlog_then
bossLib.wlog_then : term quotation -> term quotation list -> thm_tactic -> tactic
Apply a theorem-tactic using a proposition that can be assumed without loss of generality.
Like wlog_tac
, but the theorem P |- P
is
passed to the user-provided theorem-tactic instead of
strip_assume_tac
.
Never fails when applied to a theorem-tactical. The resulting tactic fails if and only if the user-provided theorem-tactical fails when used as a tactic (i.e.: when applied to a theorem and a goal).