27 lines
749 B
Text
27 lines
749 B
Text
myprod.fst p : ℕ
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myprod.fst p : ℕ
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myprod.snd p : ℕ
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myprod.snd p : ℕ
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myprod.fst p : ℕ
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myprod.fst p : ℕ
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myprod.snd p : ℕ
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myprod.snd p : ℕ
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f (myprod.fst p) : ℕ
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myprod.fst p + myprod.snd p : ℕ
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λ (c : car), position.x (car.pos c) : car → ℕ
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proj_notation.lean:34:18: error: invalid projection, 'fst' is not a field of
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c
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which has type
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car
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proj_notation.lean:36:19: error: invalid projection, field index must be greater than 0
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proj_notation.lean:38:18: error: invalid projection, structure has only 2 field(s)
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c
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which has type
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car
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proj_notation.lean:40:18: error: invalid projection, expression is not a structure
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n
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has type
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ℕ
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myprod.fst p : ℕ
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myprod.snd p : ℕ
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λ (c : car), position.y (car.pos c) : car → ℕ
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