40 lines
919 B
Text
40 lines
919 B
Text
section
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parameter {A : Type}
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definition relation : A → A → Type := λa b, a = b
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local abbreviation R := relation
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local abbreviation S [parsing-only] := relation
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variable {a : A}
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check relation a a
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check R a a
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check S a a
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end
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section
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parameter {A : Type}
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definition relation' : A → A → Type := λa b, a = b
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local infix `~1`:50 := relation'
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local infix [parsing-only] `~2`:50 := relation'
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variable {a : A}
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check relation' a a
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check a ~1 a
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check a ~2 a
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end
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section
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parameter {A : Type}
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definition relation'' : A → A → Type := λa b, a = b
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local infix [parsing-only] `~2`:50 := relation''
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variable {a : A}
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check relation'' a a
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check a ~2 a
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check a ~2 a
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end
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section
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parameter {A : Type}
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definition relation''' : A → A → Type := λa b, a = b
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local abbreviation S [parsing-only] := relation'''
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variable {a : A}
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check relation''' a a
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check S a a
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end
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