| Some definitions of interest. |
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injection_type | Def A inj B == {f:(AB)| Inj(A; B; f) } |
| | Thm* A,B:Type. A inj B Type |
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same_range_sep | Def same_range_sep(A; B) == f,g. j:B. (i:A. f(i) = j) (i:A. g(i) = j) |
| | Thm* same_range_sep(A; B) (AB)(AB)Prop |
| | Thm* same_range_sep(A; B) (A inj B)(A inj B)Prop |
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subtype | Def S T == x:S. x T |