Description: Used to rederive the Tarski-Bernays-Wajsberg axioms from merco2 . (Contributed by Anthony Hart, 16-Aug-2011) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | mercolem6 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | merco2 | |
|
2 | mercolem1 | |
|
3 | mercolem1 | |
|
4 | 2 3 | ax-mp | |
5 | mercolem5 | |
|
6 | mercolem4 | |
|
7 | 5 6 | ax-mp | |
8 | 4 7 | ax-mp | |
9 | 1 8 | ax-mp | |
10 | mercolem1 | |
|
11 | mercolem1 | |
|
12 | 10 11 | ax-mp | |
13 | mercolem5 | |
|
14 | mercolem4 | |
|
15 | 13 14 | ax-mp | |
16 | 12 15 | ax-mp | |
17 | 1 16 | ax-mp | |
18 | 9 17 | ax-mp | |
19 | 1 18 | ax-mp | |
20 | 1 19 | ax-mp | |
21 | 1 20 | ax-mp | |