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Theorem ncfintfin 4496
Description: Relationship between finite T operator and finite Nc operation in a finite universe. Corollary of Theorem X.1.31 of [Rosser] p. 529. (Contributed by SF, 24-Jan-2015.)
Assertion
Ref Expression
ncfintfin ((V Fin A V) → Tfin Ncfin A = Ncfin 1A)

Proof of Theorem ncfintfin
StepHypRef Expression
1 ncfinprop 4475 . . . 4 ((V Fin A V) → ( Ncfin A Nn A Ncfin A))
21simpld 445 . . 3 ((V Fin A V) → Ncfin A Nn )
3 tfincl 4493 . . 3 ( Ncfin A NnTfin Ncfin A Nn )
42, 3syl 15 . 2 ((V Fin A V) → Tfin Ncfin A Nn )
5 pw1exg 4303 . . . 4 (A V1A V)
6 ncfinprop 4475 . . . 4 ((V Fin 1A V) → ( Ncfin 1A Nn 1A Ncfin 1A))
75, 6sylan2 460 . . 3 ((V Fin A V) → ( Ncfin 1A Nn 1A Ncfin 1A))
87simpld 445 . 2 ((V Fin A V) → Ncfin 1A Nn )
9 tfinpw1 4495 . . 3 (( Ncfin A Nn A Ncfin A) → 1A Tfin Ncfin A)
101, 9syl 15 . 2 ((V Fin A V) → 1A Tfin Ncfin A)
117simprd 449 . 2 ((V Fin A V) → 1A Ncfin 1A)
12 nnceleq 4431 . 2 ((( Tfin Ncfin A Nn Ncfin 1A Nn ) (1A Tfin Ncfin A 1A Ncfin 1A)) → Tfin Ncfin A = Ncfin 1A)
134, 8, 10, 11, 12syl22anc 1183 1 ((V Fin A V) → Tfin Ncfin A = Ncfin 1A)
Colors of variables: wff setvar class
Syntax hints:  wi 4   wa 358   = wceq 1642   wcel 1710  Vcvv 2860  1cpw1 4136   Nn cnnc 4374   Fin cfin 4377   Ncfin cncfin 4435   Tfin ctfin 4436
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-14 1714  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925  ax-ext 2334  ax-nin 4079  ax-xp 4080  ax-cnv 4081  ax-1c 4082  ax-sset 4083  ax-si 4084  ax-ins2 4085  ax-ins3 4086  ax-typlower 4087  ax-sn 4088
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-nan 1288  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-eu 2208  df-mo 2209  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2479  df-ne 2519  df-ral 2620  df-rex 2621  df-reu 2622  df-rmo 2623  df-rab 2624  df-v 2862  df-sbc 3048  df-nin 3212  df-compl 3213  df-in 3214  df-un 3215  df-dif 3216  df-symdif 3217  df-ss 3260  df-pss 3262  df-nul 3552  df-if 3664  df-pw 3725  df-sn 3742  df-pr 3743  df-uni 3893  df-int 3928  df-opk 4059  df-1c 4137  df-pw1 4138  df-uni1 4139  df-xpk 4186  df-cnvk 4187  df-ins2k 4188  df-ins3k 4189  df-imak 4190  df-cok 4191  df-p6 4192  df-sik 4193  df-ssetk 4194  df-imagek 4195  df-idk 4196  df-iota 4340  df-0c 4378  df-addc 4379  df-nnc 4380  df-fin 4381  df-ncfin 4443  df-tfin 4444
This theorem is referenced by:  tncveqnc1fin  4545
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