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| Mirrors > Home > MPE Home > Th. List > merlem9 | Structured version Visualization version Unicode version | ||
| Description: Step 18 of Meredith's proof of Lukasiewicz axioms from his sole axiom. (Contributed by NM, 22-Dec-2002.) (Proof modification is discouraged.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| merlem9 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | merlem6 1572 |
. . . 4
| |
| 2 | merlem8 1574 |
. . . 4
| |
| 3 | 1, 2 | ax-mp 5 |
. . 3
|
| 4 | meredith 1566 |
. . 3
| |
| 5 | 3, 4 | ax-mp 5 |
. 2
|
| 6 | meredith 1566 |
. 2
| |
| 7 | 5, 6 | ax-mp 5 |
1
|
| Colors of variables: wff setvar class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This theorem is referenced by: merlem10 1576 |
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