Type Ctrl-D or 'Exit.' to exit or 'Help.' for help. # Set: pp::colors Set: pp::unicode Set: tactic::proof_state::goal_names # Proof state: main: a : Bool ⊢ a ⇒ a ∧ a ## Proof state: main: H : a, a : Bool ⊢ a ∧ a ## Proof state: main::1: H : a, a : Bool ⊢ a main::2: H : a, a : Bool ⊢ a ## Proof state: no goals ## Proved: T #