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Theorem lukshefth2 14163
Description: Lemma for renicax 14164.
Assertion
Ref Expression
lukshefth2 |- ((ta -/\ th) -/\ ((th -/\ ta) -/\ (th -/\ ta)))

Proof of Theorem lukshefth2
StepHypRef Expression
1 lukshef-ax1 14161 . . . 4 |- ((ps -/\ (ch -/\ ph)) -/\ ((th -/\ (th -/\ th)) -/\ ((th -/\ ch) -/\ ((ps -/\ th) -/\ (ps -/\ th)))))
2 lukshef-ax1 14161 . . . 4 |- (((ps -/\ (ch -/\ ph)) -/\ ((th -/\ (th -/\ th)) -/\ ((th -/\ ch) -/\ ((ps -/\ th) -/\ (ps -/\ th))))) -/\ ((th -/\ (th -/\ th)) -/\ ((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th)))))
31, 2nic-mp 1237 . . 3 |- ((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th)))
4 lukshefth1 14162 . . . 4 |- ((((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))) -/\ (ph -/\ (ph -/\ ph)))
5 lukshef-ax1 14161 . . . . 5 |- (((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th))) -/\ ((ph -/\ (ph -/\ ph)) -/\ ((ph -/\ ((ps -/\ (ch -/\ ph)) -/\ th)) -/\ (((th -/\ (th -/\ (th -/\ th))) -/\ ph) -/\ ((th -/\ (th -/\ (th -/\ th))) -/\ ph)))))
6 lukshef-ax1 14161 . . . . 5 |- ((((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th))) -/\ ((ph -/\ (ph -/\ ph)) -/\ ((ph -/\ ((ps -/\ (ch -/\ ph)) -/\ th)) -/\ (((th -/\ (th -/\ (th -/\ th))) -/\ ph) -/\ ((th -/\ (th -/\ (th -/\ th))) -/\ ph))))) -/\ (((((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))) -/\ ((((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))) -/\ (((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))))) -/\ (((((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))) -/\ (ph -/\ (ph -/\ ph))) -/\ ((((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th))) -/\ (((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th)))) -/\ (((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th))) -/\ (((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))))))))
75, 6nic-mp 1237 . . . 4 |- (((((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))) -/\ (ph -/\ (ph -/\ ph))) -/\ ((((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th))) -/\ (((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th)))) -/\ (((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th))) -/\ (((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))))))
84, 7nic-mp 1237 . . 3 |- (((th -/\ (th -/\ (th -/\ th))) -/\ (((ps -/\ (ch -/\ ph)) -/\ th) -/\ ((ps -/\ (ch -/\ ph)) -/\ th))) -/\ (((ta -/\ ph) -/\ ((ph -/\ ta) -/\ (ph -/\ ta))) -/\ (th -/\ (th -/\ th))))
93, 8nic-mp 1237 . 2 |- (th -/\ (th -/\ th))
10 lukshef-ax1 14161 . 2 |- ((th -/\ (th -/\ th)) -/\ ((ta -/\ (ta -/\ ta)) -/\ ((ta -/\ th) -/\ ((th -/\ ta) -/\ (th -/\ ta)))))
119, 10nic-mp 1237 1 |- ((ta -/\ th) -/\ ((th -/\ ta) -/\ (th -/\ ta)))
Colors of variables: wff set class
Syntax hints:   -/\ wnand 1229
This theorem is referenced by:  renicax 14164
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7
This theorem depends on definitions:  df-bi 164  df-an 242  df-nand 1230
Copyright terms: Public domain