Theorem: LoVe.abcd_bd (LoVe/Labs/Lab10Solution.lean)

State before:
a b c d : Prop
h : a ∧ (b ∧ c) ∧ d
⊢ b ∧ d
Tactic:
intro_and
State after:
case left
a b c d : Prop
h : a ∧ (b ∧ c) ∧ d
⊢ b

case right
a b c d : Prop
h : a ∧ (b ∧ c) ∧ d
⊢ d

State before:
case left
a b c d : Prop
h : a ∧ (b ∧ c) ∧ d
⊢ b

case right
a b c d : Prop
h : a ∧ (b ∧ c) ∧ d
⊢ d
Tactic:
repeat' sorry
State after:
no goals

State before:
case right
a b c d : Prop
h : a ∧ (b ∧ c) ∧ d
⊢ d
Tactic:
sorry
State after:
no goals