Description: Implicit substitution of a class for a setvar variable. (Contributed by ML, 17-Oct-2020)
Ref | Expression | ||
---|---|---|---|
Hypotheses | vtoclefex.1 | |
|
vtoclefex.3 | |
||
Assertion | vtoclefex | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vtoclefex.1 | |
|
2 | vtoclefex.3 | |
|
3 | 2 | ax-gen | |
4 | vtoclegft | |
|
5 | 1 3 4 | mp3an23 | |