Theorem isomuspgrlem2c 44348

Description: Lemma 3 for isomuspgrlem2 44351. (Contributed by AV, 29-Nov-2022.)

Hypotheses

Ref	Expression
isomushgr.v	⊢ 𝑉 = (Vtx‘𝐴)
isomushgr.w	⊢ 𝑊 = (Vtx‘𝐵)
isomushgr.e	⊢ 𝐸 = (Edg‘𝐴)
isomushgr.k	⊢ 𝐾 = (Edg‘𝐵)
isomuspgrlem2.g	⊢ 𝐺 = (𝑥 ∈ 𝐸 ↦ (𝐹 “ 𝑥))
isomuspgrlem2.a	⊢ (𝜑 → 𝐴 ∈ USPGraph)
isomuspgrlem2.f	⊢ (𝜑 → 𝐹:𝑉–1-1-onto→𝑊)
isomuspgrlem2.i	⊢ (𝜑 → ∀𝑎 ∈ 𝑉 ∀𝑏 ∈ 𝑉 ({𝑎, 𝑏} ∈ 𝐸 ↔ {(𝐹‘𝑎), (𝐹‘𝑏)} ∈ 𝐾))
isomuspgrlem2.x	⊢ (𝜑 → 𝐹 ∈ 𝑋)

Assertion

Ref	Expression
isomuspgrlem2c	⊢ (𝜑 → 𝐺:𝐸–1-1→𝐾)

Distinct variable groups:   𝑎,𝑏,𝑥   𝑥,𝐴   𝑥,𝐵   𝑥,𝐸   𝑥,𝐾   𝑥,𝑉   𝑥,𝑊   𝑥,𝐹   𝑥,𝑋   𝐸,𝑎,𝑏   𝐹,𝑎,𝑏   𝐾,𝑎,𝑏   𝑉,𝑎,𝑏   𝜑,𝑥

Allowed substitution hints:   𝜑(𝑎,𝑏)   𝐴(𝑎,𝑏)   𝐵(𝑎,𝑏)   𝐺(𝑥,𝑎,𝑏)   𝑊(𝑎,𝑏)   𝑋(𝑎,𝑏)

Proof of Theorem isomuspgrlem2c

Dummy variables 𝑒 𝑐 𝑑 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		isomushgr.v	. . 3 ⊢ 𝑉 = (Vtx‘𝐴)
2		isomushgr.w	. . 3 ⊢ 𝑊 = (Vtx‘𝐵)
3		isomushgr.e	. . 3 ⊢ 𝐸 = (Edg‘𝐴)
4		isomushgr.k	. . 3 ⊢ 𝐾 = (Edg‘𝐵)
5		isomuspgrlem2.g	. . 3 ⊢ 𝐺 = (𝑥 ∈ 𝐸 ↦ (𝐹 “ 𝑥))
6		isomuspgrlem2.a	. . 3 ⊢ (𝜑 → 𝐴 ∈ USPGraph)
7		isomuspgrlem2.f	. . 3 ⊢ (𝜑 → 𝐹:𝑉–1-1-onto→𝑊)
8		isomuspgrlem2.i	. . 3 ⊢ (𝜑 → ∀𝑎 ∈ 𝑉 ∀𝑏 ∈ 𝑉 ({𝑎, 𝑏} ∈ 𝐸 ↔ {(𝐹‘𝑎), (𝐹‘𝑏)} ∈ 𝐾))
9	1, 2, 3, 4, 5, 6, 7, 8	isomuspgrlem2b 44347	. 2 ⊢ (𝜑 → 𝐺:𝐸⟶𝐾)
10		isomuspgrlem2.x	. . . . . 6 ⊢ (𝜑 → 𝐹 ∈ 𝑋)
11	1, 2, 3, 4, 5	isomuspgrlem2a 44346	. . . . . 6 ⊢ (𝐹 ∈ 𝑋 → ∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒))
12	10, 11	syl 17	. . . . 5 ⊢ (𝜑 → ∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒))
13		imaeq2 5892	. . . . . . . . . . 11 ⊢ (𝑒 = 𝑐 → (𝐹 “ 𝑒) = (𝐹 “ 𝑐))
14		fveq2 6645	. . . . . . . . . . 11 ⊢ (𝑒 = 𝑐 → (𝐺‘𝑒) = (𝐺‘𝑐))
15	13, 14	eqeq12d 2814	. . . . . . . . . 10 ⊢ (𝑒 = 𝑐 → ((𝐹 “ 𝑒) = (𝐺‘𝑒) ↔ (𝐹 “ 𝑐) = (𝐺‘𝑐)))
16	15	rspcv 3566	. . . . . . . . 9 ⊢ (𝑐 ∈ 𝐸 → (∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒) → (𝐹 “ 𝑐) = (𝐺‘𝑐)))
17	16	ad2antrl 727	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) → (∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒) → (𝐹 “ 𝑐) = (𝐺‘𝑐)))
18	17	imp 410	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) ∧ ∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒)) → (𝐹 “ 𝑐) = (𝐺‘𝑐))
19	18	eqcomd 2804	. . . . . 6 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) ∧ ∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒)) → (𝐺‘𝑐) = (𝐹 “ 𝑐))
20		imaeq2 5892	. . . . . . . . . . 11 ⊢ (𝑒 = 𝑑 → (𝐹 “ 𝑒) = (𝐹 “ 𝑑))
21		fveq2 6645	. . . . . . . . . . 11 ⊢ (𝑒 = 𝑑 → (𝐺‘𝑒) = (𝐺‘𝑑))
22	20, 21	eqeq12d 2814	. . . . . . . . . 10 ⊢ (𝑒 = 𝑑 → ((𝐹 “ 𝑒) = (𝐺‘𝑒) ↔ (𝐹 “ 𝑑) = (𝐺‘𝑑)))
23	22	rspcv 3566	. . . . . . . . 9 ⊢ (𝑑 ∈ 𝐸 → (∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒) → (𝐹 “ 𝑑) = (𝐺‘𝑑)))
24	23	ad2antll 728	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) → (∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒) → (𝐹 “ 𝑑) = (𝐺‘𝑑)))
25	24	imp 410	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) ∧ ∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒)) → (𝐹 “ 𝑑) = (𝐺‘𝑑))
26	25	eqcomd 2804	. . . . . 6 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) ∧ ∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒)) → (𝐺‘𝑑) = (𝐹 “ 𝑑))
27	19, 26	eqeq12d 2814	. . . . 5 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) ∧ ∀𝑒 ∈ 𝐸 (𝐹 “ 𝑒) = (𝐺‘𝑒)) → ((𝐺‘𝑐) = (𝐺‘𝑑) ↔ (𝐹 “ 𝑐) = (𝐹 “ 𝑑)))
28	12, 27	mpidan 688	. . . 4 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) → ((𝐺‘𝑐) = (𝐺‘𝑑) ↔ (𝐹 “ 𝑐) = (𝐹 “ 𝑑)))
29		f1of1 6589	. . . . . . 7 ⊢ (𝐹:𝑉–1-1-onto→𝑊 → 𝐹:𝑉–1-1→𝑊)
30	7, 29	syl 17	. . . . . 6 ⊢ (𝜑 → 𝐹:𝑉–1-1→𝑊)
31		uspgrupgr 26969	. . . . . . . 8 ⊢ (𝐴 ∈ USPGraph → 𝐴 ∈ UPGraph)
32		upgruhgr 26895	. . . . . . . . 9 ⊢ (𝐴 ∈ UPGraph → 𝐴 ∈ UHGraph)
33	3	eleq2i 2881	. . . . . . . . . . 11 ⊢ (𝑐 ∈ 𝐸 ↔ 𝑐 ∈ (Edg‘𝐴))
34		edguhgr 26922	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ UHGraph ∧ 𝑐 ∈ (Edg‘𝐴)) → 𝑐 ∈ 𝒫 (Vtx‘𝐴))
35		elpwi 4506	. . . . . . . . . . . . . 14 ⊢ (𝑐 ∈ 𝒫 (Vtx‘𝐴) → 𝑐 ⊆ (Vtx‘𝐴))
36	35, 1	sseqtrrdi 3966	. . . . . . . . . . . . 13 ⊢ (𝑐 ∈ 𝒫 (Vtx‘𝐴) → 𝑐 ⊆ 𝑉)
37	34, 36	syl 17	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ UHGraph ∧ 𝑐 ∈ (Edg‘𝐴)) → 𝑐 ⊆ 𝑉)
38	37	ex 416	. . . . . . . . . . 11 ⊢ (𝐴 ∈ UHGraph → (𝑐 ∈ (Edg‘𝐴) → 𝑐 ⊆ 𝑉))
39	33, 38	syl5bi 245	. . . . . . . . . 10 ⊢ (𝐴 ∈ UHGraph → (𝑐 ∈ 𝐸 → 𝑐 ⊆ 𝑉))
40	3	eleq2i 2881	. . . . . . . . . . 11 ⊢ (𝑑 ∈ 𝐸 ↔ 𝑑 ∈ (Edg‘𝐴))
41		edguhgr 26922	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ UHGraph ∧ 𝑑 ∈ (Edg‘𝐴)) → 𝑑 ∈ 𝒫 (Vtx‘𝐴))
42		elpwi 4506	. . . . . . . . . . . . . 14 ⊢ (𝑑 ∈ 𝒫 (Vtx‘𝐴) → 𝑑 ⊆ (Vtx‘𝐴))
43	42, 1	sseqtrrdi 3966	. . . . . . . . . . . . 13 ⊢ (𝑑 ∈ 𝒫 (Vtx‘𝐴) → 𝑑 ⊆ 𝑉)
44	41, 43	syl 17	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ UHGraph ∧ 𝑑 ∈ (Edg‘𝐴)) → 𝑑 ⊆ 𝑉)
45	44	ex 416	. . . . . . . . . . 11 ⊢ (𝐴 ∈ UHGraph → (𝑑 ∈ (Edg‘𝐴) → 𝑑 ⊆ 𝑉))
46	40, 45	syl5bi 245	. . . . . . . . . 10 ⊢ (𝐴 ∈ UHGraph → (𝑑 ∈ 𝐸 → 𝑑 ⊆ 𝑉))
47	39, 46	anim12d 611	. . . . . . . . 9 ⊢ (𝐴 ∈ UHGraph → ((𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸) → (𝑐 ⊆ 𝑉 ∧ 𝑑 ⊆ 𝑉)))
48	32, 47	syl 17	. . . . . . . 8 ⊢ (𝐴 ∈ UPGraph → ((𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸) → (𝑐 ⊆ 𝑉 ∧ 𝑑 ⊆ 𝑉)))
49	6, 31, 48	3syl 18	. . . . . . 7 ⊢ (𝜑 → ((𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸) → (𝑐 ⊆ 𝑉 ∧ 𝑑 ⊆ 𝑉)))
50	49	imp 410	. . . . . 6 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) → (𝑐 ⊆ 𝑉 ∧ 𝑑 ⊆ 𝑉))
51		f1imaeq 7001	. . . . . 6 ⊢ ((𝐹:𝑉–1-1→𝑊 ∧ (𝑐 ⊆ 𝑉 ∧ 𝑑 ⊆ 𝑉)) → ((𝐹 “ 𝑐) = (𝐹 “ 𝑑) ↔ 𝑐 = 𝑑))
52	30, 50, 51	syl2an2r 684	. . . . 5 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) → ((𝐹 “ 𝑐) = (𝐹 “ 𝑑) ↔ 𝑐 = 𝑑))
53	52	biimpd 232	. . . 4 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) → ((𝐹 “ 𝑐) = (𝐹 “ 𝑑) → 𝑐 = 𝑑))
54	28, 53	sylbid 243	. . 3 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝐸 ∧ 𝑑 ∈ 𝐸)) → ((𝐺‘𝑐) = (𝐺‘𝑑) → 𝑐 = 𝑑))
55	54	ralrimivva 3156	. 2 ⊢ (𝜑 → ∀𝑐 ∈ 𝐸 ∀𝑑 ∈ 𝐸 ((𝐺‘𝑐) = (𝐺‘𝑑) → 𝑐 = 𝑑))
56		dff13 6991	. 2 ⊢ (𝐺:𝐸–1-1→𝐾 ↔ (𝐺:𝐸⟶𝐾 ∧ ∀𝑐 ∈ 𝐸 ∀𝑑 ∈ 𝐸 ((𝐺‘𝑐) = (𝐺‘𝑑) → 𝑐 = 𝑑)))
57	9, 55, 56	sylanbrc 586	1 ⊢ (𝜑 → 𝐺:𝐸–1-1→𝐾)

Syntax hints:   → wi 4   ↔ wb 209   ∧ wa 399   = wceq 1538   ∈ wcel 2111  ∀wral 3106   ⊆ wss 3881  𝒫 cpw 4497  {cpr 4527   ↦ cmpt 5110   “ cima 5522  ⟶wf 6320  –1-1→wf1 6321  –1-1-onto→wf1o 6323  ‘cfv 6324  Vtxcvtx 26789  Edgcedg 26840  UHGraphcuhgr 26849  UPGraphcupgr 26873  USPGraphcuspgr 26941

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2770  ax-sep 5167  ax-nul 5174  ax-pow 5231  ax-pr 5295  ax-un 7441  ax-cnex 10582  ax-resscn 10583  ax-1cn 10584  ax-icn 10585  ax-addcl 10586  ax-addrcl 10587  ax-mulcl 10588  ax-mulrcl 10589  ax-mulcom 10590  ax-addass 10591  ax-mulass 10592  ax-distr 10593  ax-i2m1 10594  ax-1ne0 10595  ax-1rid 10596  ax-rnegex 10597  ax-rrecex 10598  ax-cnre 10599  ax-pre-lttri 10600  ax-pre-lttrn 10601  ax-pre-ltadd 10602  ax-pre-mulgt0 10603

This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2598  df-eu 2629  df-clab 2777  df-cleq 2791  df-clel 2870  df-nfc 2938  df-ne 2988  df-nel 3092  df-ral 3111  df-rex 3112  df-reu 3113  df-rab 3115  df-v 3443  df-sbc 3721  df-csb 3829  df-dif 3884  df-un 3886  df-in 3888  df-ss 3898  df-pss 3900  df-nul 4244  df-if 4426  df-pw 4499  df-sn 4526  df-pr 4528  df-tp 4530  df-op 4532  df-uni 4801  df-int 4839  df-iun 4883  df-br 5031  df-opab 5093  df-mpt 5111  df-tr 5137  df-id 5425  df-eprel 5430  df-po 5438  df-so 5439  df-fr 5478  df-we 5480  df-xp 5525  df-rel 5526  df-cnv 5527  df-co 5528  df-dm 5529  df-rn 5530  df-res 5531  df-ima 5532  df-pred 6116  df-ord 6162  df-on 6163  df-lim 6164  df-suc 6165  df-iota 6283  df-fun 6326  df-fn 6327  df-f 6328  df-f1 6329  df-fo 6330  df-f1o 6331  df-fv 6332  df-riota 7093  df-ov 7138  df-oprab 7139  df-mpo 7140  df-om 7561  df-1st 7671  df-2nd 7672  df-wrecs 7930  df-recs 7991  df-rdg 8029  df-1o 8085  df-2o 8086  df-oadd 8089  df-er 8272  df-en 8493  df-dom 8494  df-sdom 8495  df-fin 8496  df-dju 9314  df-card 9352  df-pnf 10666  df-mnf 10667  df-xr 10668  df-ltxr 10669  df-le 10670  df-sub 10861  df-neg 10862  df-nn 11626  df-2 11688  df-n0 11886  df-xnn0 11956  df-z 11970  df-uz 12232  df-fz 12886  df-hash 13687  df-edg 26841  df-uhgr 26851  df-upgr 26875  df-uspgr 26943

This theorem is referenced by:  isomuspgrlem2e  44350