===== Image ===== ==== Set ==== | @#55CCEE: context | @#55CCEE: $ R\in \text{Rel}(X,Y) $ | | @#55EE55: postulate | @#55EE55: $ y\in \mathrm{im}(R) $ | | @#55EE55: postulate | @#55EE55: $ \exists x\ (\langle x,y \rangle \in R) $ | ==== Ramifications ==== === Reference === Mizar files: [[http://markun.cs.shinshu-u.ac.jp/mirror/mizar/JFM/Vol1/relat_1.html|RELAT_1]] Wikipedia: [[http://en.wikipedia.org/wiki/Image_%28mathematics%29|Image]] ==== Parents ==== === Context === [[Binary relation]]