12 lines
228 B
Text
12 lines
228 B
Text
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Set: pp::colors
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Set: pp::unicode
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Assumed: a
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Assumed: b
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Assumed: c
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Assumed: d
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Assumed: H
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Set: lean::pp::implicit
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Using: Nat
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Nat::add_succr a : ∀ b : ℕ, @eq ℕ (a + (b + 1)) (a + b + 1)
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Proved: mul_zerol2
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