## FANDOM

235,090 Pages

This has H = 3 and V = ...

### HAPPY

• use cor. II.4.8 to reduce to the case $Y = \mbox{Spec} A$ and $X = \mbox{Spec} B$ with $B$ a finite $A$ module.
• use ex II.3.5 to show $X \to Y$ is closed.
• adapt ex. II.3.13d to show finiteness is stable under base change, hence closed.