mathlib documentation

An attribute marking a tactic unit or tactic string which should be used by the hint tactic.

add_hint_tactic t runs the tactic t whenever hint is invoked. The typical use case is add_hint_tactic "foo" for some interactive tactic foo.

Report a list of tactics that can make progress against the current goal, and for each such tactic, the number of remaining goals afterwards.

Report a list of tactics that can make progress against the current goal.