7 lines
218 B
Text
7 lines
218 B
Text
2 goals
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a : ℕ
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⊢ ∀ (b : ℕ), 0 + b = b + 0
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a : ℕ
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⊢ ∀ (n : ℕ), (∀ (b : ℕ), n + b = b + n) → ∀ (b : ℕ), succ n + b = b + succ n
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apply_elim.lean:6:0: warning: declaration '[anonymous]' uses sorry
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