20 lines
422 B
Text
20 lines
422 B
Text
variable N : Type.{1}
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variable f : N → N → N → N
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variable g : N → N → N
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variable h : N → N → N → N
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variable s : N → N → N → N → N
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precedence `*`:75
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precedence `|`:75
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notation a * b:prev | c:prev := f a b c
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notation a * b := g a b
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notation a * b * c:prev := h a b c
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notation a * b | c * d:prev := s a b c d
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variables a b c d e : N
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check a * b
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check a * b | d
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check a * b * c
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check a * b | d * e
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