Theorem usgrstrrepeen 16643

Description: Replacing (or adding) the edges (between elements of the base set) of an extensible structure results in a simple graph. Instead of requiring (𝜑 → 𝐺 Struct 𝑋), it would be sufficient to require (𝜑 → Fun (𝐺 ∖ {∅})) and (𝜑 → 𝐺 ∈ V). (Contributed by AV, 13-Nov-2021.) (Proof shortened by AV, 16-Nov-2021.)

Hypotheses

Ref	Expression
usgrstrrepe.v	⊢ 𝑉 = (Base‘𝐺)
usgrstrrepe.i	⊢ 𝐼 = (.ef‘ndx)
usgrstrrepe.s	⊢ (𝜑 → 𝐺 Struct 𝑋)
usgrstrrepe.b	⊢ (𝜑 → (Base‘ndx) ∈ dom 𝐺)
usgrstrrepe.w	⊢ (𝜑 → 𝐸 ∈ 𝑊)
usgrstrrepeen.e	⊢ (𝜑 → 𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 𝑉 ∣ 𝑥 ≈ 2o})

Assertion

Ref	Expression
usgrstrrepeen	⊢ (𝜑 → (𝐺 sSet ⟨𝐼, 𝐸⟩) ∈ USGraph)

Distinct variable groups:   𝑥,𝐺   𝑥,𝐸   𝑥,𝐼   𝑥,𝑉   𝜑,𝑥

Allowed substitution hints:   𝑊(𝑥)   𝑋(𝑥)

Proof of Theorem usgrstrrepeen

Step	Hyp	Ref	Expression
1		usgrstrrepeen.e	. . . 4 ⊢ (𝜑 → 𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 𝑉 ∣ 𝑥 ≈ 2o})
2		usgrstrrepe.i	. . . . . . . . 9 ⊢ 𝐼 = (.ef‘ndx)
3		usgrstrrepe.s	. . . . . . . . 9 ⊢ (𝜑 → 𝐺 Struct 𝑋)
4		usgrstrrepe.b	. . . . . . . . 9 ⊢ (𝜑 → (Base‘ndx) ∈ dom 𝐺)
5		usgrstrrepe.w	. . . . . . . . 9 ⊢ (𝜑 → 𝐸 ∈ 𝑊)
6	2, 3, 4, 5	setsvtx 16463	. . . . . . . 8 ⊢ (𝜑 → (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) = (Base‘𝐺))
7		usgrstrrepe.v	. . . . . . . 8 ⊢ 𝑉 = (Base‘𝐺)
8	6, 7	eqtr4di 2289	. . . . . . 7 ⊢ (𝜑 → (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) = 𝑉)
9	8	pweqd 3693	. . . . . 6 ⊢ (𝜑 → 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) = 𝒫 𝑉)
10	9	rabeqdv 2815	. . . . 5 ⊢ (𝜑 → {𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o} = {𝑥 ∈ 𝒫 𝑉 ∣ 𝑥 ≈ 2o})
11		f1eq3 5595	. . . . 5 ⊢ ({𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o} = {𝑥 ∈ 𝒫 𝑉 ∣ 𝑥 ≈ 2o} → (𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o} ↔ 𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 𝑉 ∣ 𝑥 ≈ 2o}))
12	10, 11	syl 14	. . . 4 ⊢ (𝜑 → (𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o} ↔ 𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 𝑉 ∣ 𝑥 ≈ 2o}))
13	1, 12	mpbird 167	. . 3 ⊢ (𝜑 → 𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o})
14	2, 3, 4, 5	setsiedg 16464	. . . 4 ⊢ (𝜑 → (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) = 𝐸)
15	14	dmeqd 4983	. . . 4 ⊢ (𝜑 → dom (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) = dom 𝐸)
16		eqidd 2239	. . . 4 ⊢ (𝜑 → {𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o} = {𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o})
17	14, 15, 16	f1eq123d 5631	. . 3 ⊢ (𝜑 → ((iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩)):dom (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩))–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o} ↔ 𝐸:dom 𝐸–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o}))
18	13, 17	mpbird 167	. 2 ⊢ (𝜑 → (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩)):dom (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩))–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o})
19		structex 13416	. . . . 5 ⊢ (𝐺 Struct 𝑋 → 𝐺 ∈ V)
20	3, 19	syl 14	. . . 4 ⊢ (𝜑 → 𝐺 ∈ V)
21		edgfndxnn 16420	. . . . . 6 ⊢ (.ef‘ndx) ∈ ℕ
22	2, 21	eqeltri 2311	. . . . 5 ⊢ 𝐼 ∈ ℕ
23	22	a1i 9	. . . 4 ⊢ (𝜑 → 𝐼 ∈ ℕ)
24		setsex 13436	. . . 4 ⊢ ((𝐺 ∈ V ∧ 𝐼 ∈ ℕ ∧ 𝐸 ∈ 𝑊) → (𝐺 sSet ⟨𝐼, 𝐸⟩) ∈ V)
25	20, 23, 5, 24	syl3anc 1278	. . 3 ⊢ (𝜑 → (𝐺 sSet ⟨𝐼, 𝐸⟩) ∈ V)
26		eqid 2238	. . . 4 ⊢ (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) = (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩))
27		eqid 2238	. . . 4 ⊢ (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) = (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩))
28	26, 27	isusgren 16570	. . 3 ⊢ ((𝐺 sSet ⟨𝐼, 𝐸⟩) ∈ V → ((𝐺 sSet ⟨𝐼, 𝐸⟩) ∈ USGraph ↔ (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩)):dom (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩))–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o}))
29	25, 28	syl 14	. 2 ⊢ (𝜑 → ((𝐺 sSet ⟨𝐼, 𝐸⟩) ∈ USGraph ↔ (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩)):dom (iEdg‘(𝐺 sSet ⟨𝐼, 𝐸⟩))–1-1→{𝑥 ∈ 𝒫 (Vtx‘(𝐺 sSet ⟨𝐼, 𝐸⟩)) ∣ 𝑥 ≈ 2o}))
30	18, 29	mpbird 167	1 ⊢ (𝜑 → (𝐺 sSet ⟨𝐼, 𝐸⟩) ∈ USGraph)

This proof depends on syntax axioms:   → wi 4   ↔ wb 105   = wceq 1402   ∈ wcel 2209  {crab 2532  Vcvv 2821  𝒫 cpw 3688  ⟨cop 3712   class class class wbr 4130  dom cdm 4774  –1-1→wf1 5374  ‘cfv 5377  (class class class)co 6085  2_oc2o 6681   ≈ cen 7020  ℕcn 9307   Struct cstr 13400  ndxcnx 13401   sSet csts 13402  Basecbs 13404  .efcedgf 16416  Vtxcvtx 16424  iEdgciedg 16425  USGraphcusgr 16566

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4249  ax-nul 4259  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-cnex 8271  ax-resscn 8272  ax-1cn 8273  ax-1re 8274  ax-icn 8275  ax-addcl 8276  ax-addrcl 8277  ax-mulcl 8278  ax-mulrcl 8279  ax-addcom 8280  ax-mulcom 8281  ax-addass 8282  ax-mulass 8283  ax-distr 8284  ax-i2m1 8285  ax-0lt1 8286  ax-1rid 8287  ax-0id 8288  ax-rnegex 8289  ax-precex 8290  ax-cnre 8291  ax-pre-ltirr 8292  ax-pre-ltwlin 8293  ax-pre-lttrn 8294  ax-pre-ltadd 8296  ax-pre-mulgt0 8297

This proof depends on definitions:  df-bi 117  df-dc 847  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-if 3639  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-br 4131  df-opab 4193  df-mpt 4194  df-tr 4230  df-id 4438  df-iord 4511  df-on 4513  df-suc 4516  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-1st 6374  df-2nd 6375  df-1o 6687  df-2o 6688  df-en 7023  df-dom 7024  df-pnf 8363  df-mnf 8364  df-xr 8365  df-ltxr 8366  df-le 8367  df-sub 8501  df-neg 8502  df-inn 9308  df-2 9366  df-3 9367  df-4 9368  df-5 9369  df-6 9370  df-7 9371  df-8 9372  df-9 9373  df-n0 9569  df-z 9650  df-dec 9783  df-struct 13406  df-ndx 13407  df-slot 13408  df-base 13410  df-sets 13411  df-edgf 16417  df-vtx 16426  df-iedg 16427  df-usgren 16568

This theorem is used by: (None)