===== Injective function ===== ==== Set ==== | @#55CCEE: context | @#55CCEE: $X,Y$ | | @#FFBB00: definiendum | @#FFBB00: $ f\in \mathrm{Injective}(X,Y)$ | | @#55CCEE: context | @#55CCEE: $ f:X\to Y $ | | @#55EE55: postulate | @#55EE55: $ f(x)=f(y) \implies x=y $ | ==== Discussion ==== ==== Parents ==== === Context === [[Function]]