Theorem pmtrfconj 19403

Description: Any conjugate of a transposition is a transposition. (Contributed by Stefan O'Rear, 22-Aug-2015.)

Hypotheses

Ref	Expression
pmtrrn.t	⊢ 𝑇 = (pmTrsp‘𝐷)
pmtrrn.r	⊢ 𝑅 = ran 𝑇

Assertion

Ref	Expression
pmtrfconj	⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → ((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∈ 𝑅)

Proof of Theorem pmtrfconj

Step	Hyp	Ref	Expression
1		pmtrrn.t	. . . . 5 ⊢ 𝑇 = (pmTrsp‘𝐷)
2		pmtrrn.r	. . . . 5 ⊢ 𝑅 = ran 𝑇
3	1, 2	pmtrfb 19402	. . . 4 ⊢ (𝐹 ∈ 𝑅 ↔ (𝐷 ∈ V ∧ 𝐹:𝐷–1-1-onto→𝐷 ∧ dom (𝐹 ∖ I ) ≈ 2o))
4	3	simp1bi 1145	. . 3 ⊢ (𝐹 ∈ 𝑅 → 𝐷 ∈ V)
5	4	adantr 480	. 2 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → 𝐷 ∈ V)
6		simpr 484	. . . 4 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → 𝐺:𝐷–1-1-onto→𝐷)
7	1, 2	pmtrff1o 19400	. . . . 5 ⊢ (𝐹 ∈ 𝑅 → 𝐹:𝐷–1-1-onto→𝐷)
8	7	adantr 480	. . . 4 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → 𝐹:𝐷–1-1-onto→𝐷)
9		f1oco 6826	. . . 4 ⊢ ((𝐺:𝐷–1-1-onto→𝐷 ∧ 𝐹:𝐷–1-1-onto→𝐷) → (𝐺 ∘ 𝐹):𝐷–1-1-onto→𝐷)
10	6, 8, 9	syl2anc 584	. . 3 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → (𝐺 ∘ 𝐹):𝐷–1-1-onto→𝐷)
11		f1ocnv 6815	. . . 4 ⊢ (𝐺:𝐷–1-1-onto→𝐷 → ◡𝐺:𝐷–1-1-onto→𝐷)
12	11	adantl 481	. . 3 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → ◡𝐺:𝐷–1-1-onto→𝐷)
13		f1oco 6826	. . 3 ⊢ (((𝐺 ∘ 𝐹):𝐷–1-1-onto→𝐷 ∧ ◡𝐺:𝐷–1-1-onto→𝐷) → ((𝐺 ∘ 𝐹) ∘ ◡𝐺):𝐷–1-1-onto→𝐷)
14	10, 12, 13	syl2anc 584	. 2 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → ((𝐺 ∘ 𝐹) ∘ ◡𝐺):𝐷–1-1-onto→𝐷)
15		f1of 6803	. . . . . . 7 ⊢ (𝐹:𝐷–1-1-onto→𝐷 → 𝐹:𝐷⟶𝐷)
16	7, 15	syl 17	. . . . . 6 ⊢ (𝐹 ∈ 𝑅 → 𝐹:𝐷⟶𝐷)
17	16	adantr 480	. . . . 5 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → 𝐹:𝐷⟶𝐷)
18		f1omvdconj 19383	. . . . 5 ⊢ ((𝐹:𝐷⟶𝐷 ∧ 𝐺:𝐷–1-1-onto→𝐷) → dom (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∖ I ) = (𝐺 “ dom (𝐹 ∖ I )))
19	17, 6, 18	syl2anc 584	. . . 4 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → dom (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∖ I ) = (𝐺 “ dom (𝐹 ∖ I )))
20		f1of1 6802	. . . . . 6 ⊢ (𝐺:𝐷–1-1-onto→𝐷 → 𝐺:𝐷–1-1→𝐷)
21	20	adantl 481	. . . . 5 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → 𝐺:𝐷–1-1→𝐷)
22		difss 4102	. . . . . . 7 ⊢ (𝐹 ∖ I ) ⊆ 𝐹
23		dmss 5869	. . . . . . 7 ⊢ ((𝐹 ∖ I ) ⊆ 𝐹 → dom (𝐹 ∖ I ) ⊆ dom 𝐹)
24	22, 23	ax-mp 5	. . . . . 6 ⊢ dom (𝐹 ∖ I ) ⊆ dom 𝐹
25	24, 17	fssdm 6710	. . . . 5 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → dom (𝐹 ∖ I ) ⊆ 𝐷)
26	5, 25	ssexd 5282	. . . . 5 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → dom (𝐹 ∖ I ) ∈ V)
27		f1imaeng 8988	. . . . 5 ⊢ ((𝐺:𝐷–1-1→𝐷 ∧ dom (𝐹 ∖ I ) ⊆ 𝐷 ∧ dom (𝐹 ∖ I ) ∈ V) → (𝐺 “ dom (𝐹 ∖ I )) ≈ dom (𝐹 ∖ I ))
28	21, 25, 26, 27	syl3anc 1373	. . . 4 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → (𝐺 “ dom (𝐹 ∖ I )) ≈ dom (𝐹 ∖ I ))
29	19, 28	eqbrtrd 5132	. . 3 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → dom (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∖ I ) ≈ dom (𝐹 ∖ I ))
30	3	simp3bi 1147	. . . 4 ⊢ (𝐹 ∈ 𝑅 → dom (𝐹 ∖ I ) ≈ 2o)
31	30	adantr 480	. . 3 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → dom (𝐹 ∖ I ) ≈ 2o)
32		entr 8980	. . 3 ⊢ ((dom (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∖ I ) ≈ dom (𝐹 ∖ I ) ∧ dom (𝐹 ∖ I ) ≈ 2o) → dom (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∖ I ) ≈ 2o)
33	29, 31, 32	syl2anc 584	. 2 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → dom (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∖ I ) ≈ 2o)
34	1, 2	pmtrfb 19402	. 2 ⊢ (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∈ 𝑅 ↔ (𝐷 ∈ V ∧ ((𝐺 ∘ 𝐹) ∘ ◡𝐺):𝐷–1-1-onto→𝐷 ∧ dom (((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∖ I ) ≈ 2o))
35	5, 14, 33, 34	syl3anbrc 1344	1 ⊢ ((𝐹 ∈ 𝑅 ∧ 𝐺:𝐷–1-1-onto→𝐷) → ((𝐺 ∘ 𝐹) ∘ ◡𝐺) ∈ 𝑅)

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1540   ∈ wcel 2109  Vcvv 3450   ∖ cdif 3914   ⊆ wss 3917   class class class wbr 5110   I cid 5535  ^◡ccnv 5640  dom cdm 5641  ran crn 5642   “ cima 5644   ∘ ccom 5645  ⟶wf 6510  –1-1→wf1 6511  –1-1-onto→wf1o 6513  ‘cfv 6514  2_oc2o 8431   ≈ cen 8918  pmTrspcpmtr 19378

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2702  ax-rep 5237  ax-sep 5254  ax-nul 5264  ax-pow 5323  ax-pr 5390  ax-un 7714

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2534  df-eu 2563  df-clab 2709  df-cleq 2722  df-clel 2804  df-nfc 2879  df-ne 2927  df-ral 3046  df-rex 3055  df-reu 3357  df-rab 3409  df-v 3452  df-sbc 3757  df-csb 3866  df-dif 3920  df-un 3922  df-in 3924  df-ss 3934  df-pss 3937  df-nul 4300  df-if 4492  df-pw 4568  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-iun 4960  df-br 5111  df-opab 5173  df-mpt 5192  df-tr 5218  df-id 5536  df-eprel 5541  df-po 5549  df-so 5550  df-fr 5594  df-we 5596  df-xp 5647  df-rel 5648  df-cnv 5649  df-co 5650  df-dm 5651  df-rn 5652  df-res 5653  df-ima 5654  df-ord 6338  df-on 6339  df-lim 6340  df-suc 6341  df-iota 6467  df-fun 6516  df-fn 6517  df-f 6518  df-f1 6519  df-fo 6520  df-f1o 6521  df-fv 6522  df-om 7846  df-1o 8437  df-2o 8438  df-er 8674  df-en 8922  df-dom 8923  df-sdom 8924  df-fin 8925  df-pmtr 19379

This theorem is referenced by:  psgnunilem1  19430