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Theorem merlem11 1417
Description: Step 20 of Meredith's proof of Lukasiewicz axioms from his sole axiom. (Contributed by NM, 14-Dec-2002.) (Proof modification is discouraged.) (New usage is discouraged.)
Assertion
Ref Expression
merlem11

Proof of Theorem merlem11
StepHypRef Expression
1 ax-meredith 1406 . 2
2 merlem10 1416 . . 3
3 merlem10 1416 . . 3
42, 3ax-mp 5 . 2
51, 4ax-mp 5 1
Colors of variables: wff setvar class
Syntax hints:   wn 3   wi 4
This theorem was proved from axioms:  ax-mp 5  ax-meredith 1406
This theorem is referenced by:  merlem12  1418  merlem13  1419  luk-2  1421  luk-3  1422
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