change to another goal.
Major Section: PROOF-CHECKER-COMMANDS
Examples: (cg (main . 1)) -- change to the goal (main . 1) cg -- change to the next-to-top goalSame as
General Form: (CG &OPTIONAL goal-name)
(change-goal goal-name t), i.e. change to the indicated and move the current goal to the end of the goal stack.