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| Mirrors > Home > ILE Home > Th. List > setsvtx | GIF version | ||
| Description: The vertices of a structure with a base set and an inserted resp. replaced slot for the edge function. (Contributed by AV, 18-Jan-2020.) (Revised by AV, 16-Nov-2021.) |
| Ref | Expression |
|---|---|
| setsvtx.i | ⊢ 𝐼 = (.ef‘ndx) |
| setsvtx.s | ⊢ (𝜑 → 𝐺 Struct 𝑋) |
| setsvtx.b | ⊢ (𝜑 → (Base‘ndx) ∈ dom 𝐺) |
| setsvtx.e | ⊢ (𝜑 → 𝐸 ∈ 𝑊) |
| Ref | Expression |
|---|---|
| setsvtx | ⊢ (𝜑 → (Vtx‘(𝐺 sSet 〈𝐼, 𝐸〉)) = (Base‘𝐺)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | setsvtx.s | . . . . 5 ⊢ (𝜑 → 𝐺 Struct 𝑋) | |
| 2 | structex 13347 | . . . . 5 ⊢ (𝐺 Struct 𝑋 → 𝐺 ∈ V) | |
| 3 | 1, 2 | syl 14 | . . . 4 ⊢ (𝜑 → 𝐺 ∈ V) |
| 4 | setsvtx.i | . . . . . 6 ⊢ 𝐼 = (.ef‘ndx) | |
| 5 | edgfndxnn 16232 | . . . . . 6 ⊢ (.ef‘ndx) ∈ ℕ | |
| 6 | 4, 5 | eqeltri 2311 | . . . . 5 ⊢ 𝐼 ∈ ℕ |
| 7 | 6 | a1i 9 | . . . 4 ⊢ (𝜑 → 𝐼 ∈ ℕ) |
| 8 | setsvtx.e | . . . 4 ⊢ (𝜑 → 𝐸 ∈ 𝑊) | |
| 9 | setsex 13367 | . . . 4 ⊢ ((𝐺 ∈ V ∧ 𝐼 ∈ ℕ ∧ 𝐸 ∈ 𝑊) → (𝐺 sSet 〈𝐼, 𝐸〉) ∈ V) | |
| 10 | 3, 7, 8, 9 | syl3anc 1278 | . . 3 ⊢ (𝜑 → (𝐺 sSet 〈𝐼, 𝐸〉) ∈ V) |
| 11 | 1, 7, 8 | setsn0fun 13372 | . . 3 ⊢ (𝜑 → Fun ((𝐺 sSet 〈𝐼, 𝐸〉) ∖ {∅})) |
| 12 | 4 | eqcomi 2242 | . . . . 5 ⊢ (.ef‘ndx) = 𝐼 |
| 13 | 12 | preq2i 3791 | . . . 4 ⊢ {(Base‘ndx), (.ef‘ndx)} = {(Base‘ndx), 𝐼} |
| 14 | setsvtx.b | . . . . 5 ⊢ (𝜑 → (Base‘ndx) ∈ dom 𝐺) | |
| 15 | 1, 7, 8, 14 | bassetsnn 13392 | . . . 4 ⊢ (𝜑 → {(Base‘ndx), 𝐼} ⊆ dom (𝐺 sSet 〈𝐼, 𝐸〉)) |
| 16 | 13, 15 | eqsstrid 3294 | . . 3 ⊢ (𝜑 → {(Base‘ndx), (.ef‘ndx)} ⊆ dom (𝐺 sSet 〈𝐼, 𝐸〉)) |
| 17 | funvtxvalg 16260 | . . 3 ⊢ (((𝐺 sSet 〈𝐼, 𝐸〉) ∈ V ∧ Fun ((𝐺 sSet 〈𝐼, 𝐸〉) ∖ {∅}) ∧ {(Base‘ndx), (.ef‘ndx)} ⊆ dom (𝐺 sSet 〈𝐼, 𝐸〉)) → (Vtx‘(𝐺 sSet 〈𝐼, 𝐸〉)) = (Base‘(𝐺 sSet 〈𝐼, 𝐸〉))) | |
| 18 | 10, 11, 16, 17 | syl3anc 1278 | . 2 ⊢ (𝜑 → (Vtx‘(𝐺 sSet 〈𝐼, 𝐸〉)) = (Base‘(𝐺 sSet 〈𝐼, 𝐸〉))) |
| 19 | baseslid 13393 | . . . 4 ⊢ (Base = Slot (Base‘ndx) ∧ (Base‘ndx) ∈ ℕ) | |
| 20 | basendxnedgfndx 16235 | . . . . 5 ⊢ (Base‘ndx) ≠ (.ef‘ndx) | |
| 21 | 20, 4 | neeqtrri 2449 | . . . 4 ⊢ (Base‘ndx) ≠ 𝐼 |
| 22 | 19, 21, 6 | setsslnid 13387 | . . 3 ⊢ ((𝐺 ∈ V ∧ 𝐸 ∈ 𝑊) → (Base‘𝐺) = (Base‘(𝐺 sSet 〈𝐼, 𝐸〉))) |
| 23 | 3, 8, 22 | syl2anc 415 | . 2 ⊢ (𝜑 → (Base‘𝐺) = (Base‘(𝐺 sSet 〈𝐼, 𝐸〉))) |
| 24 | 18, 23 | eqtr4d 2274 | 1 ⊢ (𝜑 → (Vtx‘(𝐺 sSet 〈𝐼, 𝐸〉)) = (Base‘𝐺)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1402 ∈ wcel 2209 Vcvv 2821 ∖ cdif 3217 ⊆ wss 3220 ∅c0 3520 {csn 3708 {cpr 3709 〈cop 3711 class class class wbr 4128 dom cdm 4772 Fun wfun 5369 ‘cfv 5375 (class class class)co 6079 ℕcn 9287 Struct cstr 13331 ndxcnx 13332 sSet csts 13333 Basecbs 13335 .efcedgf 16228 Vtxcvtx 16236 |
| 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-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 4247 ax-nul 4257 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-setind 4682 ax-cnex 8264 ax-resscn 8265 ax-1cn 8266 ax-1re 8267 ax-icn 8268 ax-addcl 8269 ax-addrcl 8270 ax-mulcl 8271 ax-mulrcl 8272 ax-addcom 8273 ax-mulcom 8274 ax-addass 8275 ax-mulass 8276 ax-distr 8277 ax-i2m1 8278 ax-0lt1 8279 ax-1rid 8280 ax-0id 8281 ax-rnegex 8282 ax-precex 8283 ax-cnre 8284 ax-pre-ltirr 8285 ax-pre-ltwlin 8286 ax-pre-lttrn 8287 ax-pre-ltadd 8289 ax-pre-mulgt0 8290 |
| This theorem 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 3714 df-pr 3715 df-op 3717 df-uni 3934 df-int 3969 df-br 4129 df-opab 4191 df-mpt 4192 df-tr 4228 df-id 4436 df-iord 4509 df-on 4511 df-suc 4514 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-f1 5380 df-fo 5381 df-f1o 5382 df-fv 5383 df-riota 6032 df-ov 6082 df-oprab 6083 df-mpo 6084 df-1st 6368 df-1o 6681 df-2o 6682 df-en 7017 df-dom 7018 df-pnf 8356 df-mnf 8357 df-xr 8358 df-ltxr 8359 df-le 8360 df-sub 8493 df-neg 8494 df-inn 9288 df-2 9346 df-3 9347 df-4 9348 df-5 9349 df-6 9350 df-7 9351 df-8 9352 df-9 9353 df-n0 9547 df-z 9628 df-dec 9761 df-struct 13337 df-ndx 13338 df-slot 13339 df-base 13341 df-sets 13342 df-edgf 16229 df-vtx 16238 |
| This theorem is referenced by: usgrstrrepeen 16455 |
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