| Mathbox for Alexander van der Vekens |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > stgrvtx0 | Structured version Visualization version GIF version | ||
| Description: The center ("internal node") of a star graph SN. (Contributed by AV, 12-Sep-2025.) |
| Ref | Expression |
|---|---|
| stgrvtx0.g | ⊢ 𝐺 = (StarGr‘𝑁) |
| stgrvtx0.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| Ref | Expression |
|---|---|
| stgrvtx0 | ⊢ (𝑁 ∈ ℕ0 → 0 ∈ 𝑉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | stgrvtx 48537 | . 2 ⊢ (𝑁 ∈ ℕ0 → (Vtx‘(StarGr‘𝑁)) = (0...𝑁)) | |
| 2 | stgrvtx0.v | . . . . 5 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 3 | stgrvtx0.g | . . . . . 6 ⊢ 𝐺 = (StarGr‘𝑁) | |
| 4 | 3 | fveq2i 6865 | . . . . 5 ⊢ (Vtx‘𝐺) = (Vtx‘(StarGr‘𝑁)) |
| 5 | 2, 4 | eqtri 2784 | . . . 4 ⊢ 𝑉 = (Vtx‘(StarGr‘𝑁)) |
| 6 | 5 | eqeq1i 2766 | . . 3 ⊢ (𝑉 = (0...𝑁) ↔ (Vtx‘(StarGr‘𝑁)) = (0...𝑁)) |
| 7 | 0elfz 13623 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → 0 ∈ (0...𝑁)) | |
| 8 | eleq2 2850 | . . . 4 ⊢ (𝑉 = (0...𝑁) → (0 ∈ 𝑉 ↔ 0 ∈ (0...𝑁))) | |
| 9 | 7, 8 | syl5ibrcom 249 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (𝑉 = (0...𝑁) → 0 ∈ 𝑉)) |
| 10 | 6, 9 | biimtrrid 245 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((Vtx‘(StarGr‘𝑁)) = (0...𝑁) → 0 ∈ 𝑉)) |
| 11 | 1, 10 | mpd 15 | 1 ⊢ (𝑁 ∈ ℕ0 → 0 ∈ 𝑉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1559 ∈ wcel 2141 ‘cfv 6516 (class class class)co 7391 0cc0 11067 ℕ0cn0 12475 ...cfz 13506 Vtxcvtx 29154 StarGrcstgr 48534 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5224 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7713 ax-cnex 11123 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-addrcl 11128 ax-mulcl 11129 ax-mulrcl 11130 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-i2m1 11135 ax-1ne0 11136 ax-1rid 11137 ax-rnegex 11138 ax-rrecex 11139 ax-cnre 11140 ax-pre-lttri 11141 ax-pre-lttrn 11142 ax-pre-ltadd 11143 ax-pre-mulgt0 11144 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-int 4903 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6283 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-riota 7348 df-ov 7394 df-oprab 7395 df-mpo 7396 df-om 7842 df-1st 7965 df-2nd 7966 df-frecs 8256 df-wrecs 8287 df-recs 8336 df-rdg 8375 df-1o 8431 df-oadd 8435 df-er 8672 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-dju 9853 df-card 9891 df-pnf 11212 df-mnf 11213 df-xr 11214 df-ltxr 11215 df-le 11216 df-sub 11410 df-neg 11411 df-nn 12205 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 df-7 12279 df-8 12280 df-9 12281 df-n0 12476 df-xnn0 12549 df-z 12563 df-dec 12683 df-uz 12834 df-fz 13507 df-hash 14338 df-struct 17174 df-slot 17209 df-ndx 17221 df-base 17237 df-edgf 29147 df-vtx 29156 df-stgr 48535 |
| This theorem is referenced by: stgrnbgr0 48547 stgrclnbgr0 48548 isubgr3stgrlem2 48550 isubgr3stgrlem3 48551 |
| Copyright terms: Public domain | W3C validator |