Metamath Proof Explorer
Description: Conversion of implicit substitution to explicit class substitution.
(Contributed by NM, 10-Nov-2005)
|
|
Ref |
Expression |
|
Hypothesis |
sbcieg.1 |
|
|
Assertion |
sbcieg |
|
Proof
Step |
Hyp |
Ref |
Expression |
1 |
|
sbcieg.1 |
|
2 |
|
nfv |
|
3 |
2 1
|
sbciegf |
|