Implementation of the show tactic #
The show p tactic finds the first goal that p unifies with and brings it to the front of the
goal list. If there were a first_goal combinator, it would be like first_goal change p.
show tactic #The show p tactic finds the first goal that p unifies with and brings it to the front of the
goal list. If there were a first_goal combinator, it would be like first_goal change p.