Metamath Proof Explorer
Description: Change bound variable. This is to cbvexvw what cbvalivw is to
cbvalvw . TODO: move after cbvalivw . (Contributed by BJ, 17-Mar-2020)
|
|
Ref |
Expression |
|
Hypothesis |
bj-cbvexivw.1 |
|
|
Assertion |
bj-cbvexivw |
|
Proof
Step |
Hyp |
Ref |
Expression |
1 |
|
bj-cbvexivw.1 |
|
2 |
|
ax5e |
|
3 |
|
ax-5 |
|
4 |
2 3 1
|
bj-cbvexiw |
|