Description: Obsolete version of mpteq12df as of 11-Nov-2024. (Contributed by Scott Fenton, 8-Aug-2013) (Revised by Mario Carneiro, 11-Dec-2016) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | mpteq12df.1 | |
|
mpteq12df.2 | |
||
mpteq12df.3 | |
||
Assertion | mpteq12dfOLD | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mpteq12df.1 | |
|
2 | mpteq12df.2 | |
|
3 | mpteq12df.3 | |
|
4 | nfv | |
|
5 | 2 | eleq2d | |
6 | 3 | eqeq2d | |
7 | 5 6 | anbi12d | |
8 | 1 4 7 | opabbid | |
9 | df-mpt | |
|
10 | df-mpt | |
|
11 | 8 9 10 | 3eqtr4g | |