MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  isf34lem1 Unicode version

Theorem isf34lem1 8773
Description: Lemma for isfin3-4 8783. (Contributed by Stefan O'Rear, 7-Nov-2014.)
Hypothesis
Ref Expression
compss.a
Assertion
Ref Expression
isf34lem1
Distinct variable groups:   ,   ,

Proof of Theorem isf34lem1
Dummy variable is distinct from all other variables.
StepHypRef Expression
1 elpw2g 4615 . . 3
21biimpar 485 . 2
3 difexg 4600 . . 3
43adantr 465 . 2
5 difeq2 3615 . . 3
6 compss.a . . . 4
7 difeq2 3615 . . . . 5
87cbvmptv 4543 . . . 4
96, 8eqtri 2486 . . 3
105, 9fvmptg 5954 . 2
112, 4, 10syl2anc 661 1
Colors of variables: wff setvar class
Syntax hints:  ->wi 4  /\wa 369  =wceq 1395  e.wcel 1818   cvv 3109  \cdif 3472  C_wss 3475  ~Pcpw 4012  e.cmpt 4510  `cfv 5593
This theorem is referenced by:  compssiso  8775  isf34lem4  8778  isf34lem7  8780  isf34lem6  8781
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-5 1704  ax-6 1747  ax-7 1790  ax-9 1822  ax-10 1837  ax-11 1842  ax-12 1854  ax-13 1999  ax-ext 2435  ax-sep 4573  ax-nul 4581  ax-pr 4691
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 975  df-tru 1398  df-ex 1613  df-nf 1617  df-sb 1740  df-eu 2286  df-mo 2287  df-clab 2443  df-cleq 2449  df-clel 2452  df-nfc 2607  df-ne 2654  df-ral 2812  df-rex 2813  df-rab 2816  df-v 3111  df-sbc 3328  df-dif 3478  df-un 3480  df-in 3482  df-ss 3489  df-nul 3785  df-if 3942  df-pw 4014  df-sn 4030  df-pr 4032  df-op 4036  df-uni 4250  df-br 4453  df-opab 4511  df-mpt 4512  df-id 4800  df-xp 5010  df-rel 5011  df-cnv 5012  df-co 5013  df-dm 5014  df-iota 5556  df-fun 5595  df-fv 5601
  Copyright terms: Public domain W3C validator