Theorem tposeq 6391

Description: Equality theorem for transposition. (Contributed by Mario Carneiro, 10-Sep-2015.)

Assertion

Ref	Expression
tposeq	|- ( F = G -> tpos F = tpos G )

Proof of Theorem tposeq

Step	Hyp	Ref	Expression
1		eqimss 3278	. . 3 |- ( F = G -> F C_ G )
2		tposss 6390	. . 3 |- ( F C_ G -> tpos F C_ tpos G )
3	1, 2	syl 14	. 2 |- ( F = G -> tpos F C_ tpos G )
4		eqimss2 3279	. . 3 |- ( F = G -> G C_ F )
5		tposss 6390	. . 3 |- ( G C_ F -> tpos G C_ tpos F )
6	4, 5	syl 14	. 2 |- ( F = G -> tpos G C_ tpos F )
7	3, 6	eqssd 3241	1 |- ( F = G -> tpos F = tpos G )

Syntax hints:   -> wi 4   = wceq 1395   C_ wss 3197  tpos ctpos 6388

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-14 2203  ax-ext 2211  ax-sep 4201  ax-pow 4257  ax-pr 4292

This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-nf 1507  df-sb 1809  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2801  df-un 3201  df-in 3203  df-ss 3210  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-br 4083  df-opab 4145  df-mpt 4146  df-xp 4724  df-rel 4725  df-cnv 4726  df-co 4727  df-dm 4728  df-res 4730  df-tpos 6389

This theorem is referenced by:  tposeqd  6392  tposeqi  6421