subgoal
bossLib.subgoal : term quotation -> tactic
Produces a subgoal.
A call to subgoal q
is equivalent (by definition) to a
call to Q.SUBGOAL_THEN q STRIP_ASSUME_TAC
.
Fails if the provided quotation does not parse to a term of boolean type in the context of the current goal.
The subgoal
tactic is also available via the name
sg
.