pullback diagram造句

例句与造句

1. the morphism f'is again a kernel and, dually, for every cokernel g : X \ rightarrow Y and every morphism h : Z \ rightarrow Y in the pullback diagram
2. the morphism f'is again a kernel . g : X \ rightarrow Y is a semi-stable cokernel if it is a cokernel and for every morphism h : Z \ rightarrow Y in the pullback diagram
3. It's difficult to find pullback diagram in a sentence. 用pullback diagram造句挺难的