+++ title = "Epimorphisms" author = "Yann Herklotz" tags = [] categories = [] backlinks = ["4d2a"] forwardlinks = ["4d2c"] zettelid = "4d2b" +++ $g: B \leftarrow C$ $A \underset{f_2}{\overset{f_1}{\leftleftarrows}} B\overset{g}{\leftarrow} C$ Epimorphisms: $f_1 \circ g = f_2 \circ g \implies f_1 = f_2$.