10 lines
148 B
Text
10 lines
148 B
Text
n : Nat
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h : n = 0
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m : Nat := n + 1
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v : Nat := m + 1
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this : v = n + 2
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⊢ 0 + n = 0
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m : Nat := 0 + 1
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v : Nat := m + 1
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this : v = 0 + 2
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⊢ 0 + 0 = 0
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