Description: Used to rederive the Tarski-Bernays-Wajsberg axioms from merco1 . (Contributed by Anthony Hart, 18-Sep-2011) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | merco1lem17 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | merco1lem11 | |
|
2 | merco1lem7 | |
|
3 | merco1 | |
|
4 | 2 3 | ax-mp | |
5 | merco1lem9 | |
|
6 | 4 5 | ax-mp | |
7 | 1 6 | ax-mp | |
8 | merco1 | |
|
9 | 7 8 | ax-mp | |
10 | merco1lem11 | |
|
11 | merco1lem7 | |
|
12 | merco1 | |
|
13 | 11 12 | ax-mp | |
14 | merco1lem9 | |
|
15 | 13 14 | ax-mp | |
16 | 10 15 | ax-mp | |
17 | merco1 | |
|
18 | 16 17 | ax-mp | |
19 | 9 18 | ax-mp | |
20 | merco1lem4 | |
|
21 | merco1lem16 | |
|
22 | 19 20 21 | mpsyl | |
23 | merco1 | |
|
24 | 22 23 | ax-mp | |