Metamath Proof Explorer
Description: Membership in a class abstraction, with a weaker antecedent than
elabg . (Contributed by NM, 29-Aug-2006)
|
|
Ref |
Expression |
|
Hypothesis |
elab3g.1 |
|
|
Assertion |
elab3g |
|
Proof
Step |
Hyp |
Ref |
Expression |
1 |
|
elab3g.1 |
|
2 |
|
nfcv |
|
3 |
|
nfv |
|
4 |
2 3 1
|
elab3gf |
|