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| Mirrors > Home > MPE Home > Th. List > Mathboxes > stgredgel | Structured version Visualization version GIF version | ||
| Description: An edge of the star graph SN. (Contributed by AV, 11-Sep-2025.) |
| Ref | Expression |
|---|---|
| stgredgel | ⊢ (𝑁 ∈ ℕ0 → (𝐸 ∈ (Edg‘(StarGr‘𝑁)) ↔ (𝐸 ⊆ (0...𝑁) ∧ ∃𝑥 ∈ (1...𝑁)𝐸 = {0, 𝑥}))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | stgredg 48269 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (Edg‘(StarGr‘𝑁)) = {𝑒 ∈ 𝒫 (0...𝑁) ∣ ∃𝑥 ∈ (1...𝑁)𝑒 = {0, 𝑥}}) | |
| 2 | 1 | eleq2d 2823 | . 2 ⊢ (𝑁 ∈ ℕ0 → (𝐸 ∈ (Edg‘(StarGr‘𝑁)) ↔ 𝐸 ∈ {𝑒 ∈ 𝒫 (0...𝑁) ∣ ∃𝑥 ∈ (1...𝑁)𝑒 = {0, 𝑥}})) |
| 3 | eqeq1 2741 | . . . . 5 ⊢ (𝑒 = 𝐸 → (𝑒 = {0, 𝑥} ↔ 𝐸 = {0, 𝑥})) | |
| 4 | 3 | rexbidv 3161 | . . . 4 ⊢ (𝑒 = 𝐸 → (∃𝑥 ∈ (1...𝑁)𝑒 = {0, 𝑥} ↔ ∃𝑥 ∈ (1...𝑁)𝐸 = {0, 𝑥})) |
| 5 | 4 | elrab 3647 | . . 3 ⊢ (𝐸 ∈ {𝑒 ∈ 𝒫 (0...𝑁) ∣ ∃𝑥 ∈ (1...𝑁)𝑒 = {0, 𝑥}} ↔ (𝐸 ∈ 𝒫 (0...𝑁) ∧ ∃𝑥 ∈ (1...𝑁)𝐸 = {0, 𝑥})) |
| 6 | prex 5383 | . . . . . . 7 ⊢ {0, 𝑥} ∈ V | |
| 7 | eleq1 2825 | . . . . . . 7 ⊢ (𝐸 = {0, 𝑥} → (𝐸 ∈ V ↔ {0, 𝑥} ∈ V)) | |
| 8 | 6, 7 | mpbiri 258 | . . . . . 6 ⊢ (𝐸 = {0, 𝑥} → 𝐸 ∈ V) |
| 9 | elpwg 4558 | . . . . . 6 ⊢ (𝐸 ∈ V → (𝐸 ∈ 𝒫 (0...𝑁) ↔ 𝐸 ⊆ (0...𝑁))) | |
| 10 | 8, 9 | syl 17 | . . . . 5 ⊢ (𝐸 = {0, 𝑥} → (𝐸 ∈ 𝒫 (0...𝑁) ↔ 𝐸 ⊆ (0...𝑁))) |
| 11 | 10 | a1i 11 | . . . 4 ⊢ (𝑥 ∈ (1...𝑁) → (𝐸 = {0, 𝑥} → (𝐸 ∈ 𝒫 (0...𝑁) ↔ 𝐸 ⊆ (0...𝑁)))) |
| 12 | 11 | rexlimiv 3131 | . . 3 ⊢ (∃𝑥 ∈ (1...𝑁)𝐸 = {0, 𝑥} → (𝐸 ∈ 𝒫 (0...𝑁) ↔ 𝐸 ⊆ (0...𝑁))) |
| 13 | 5, 12 | bianim 576 | . 2 ⊢ (𝐸 ∈ {𝑒 ∈ 𝒫 (0...𝑁) ∣ ∃𝑥 ∈ (1...𝑁)𝑒 = {0, 𝑥}} ↔ (𝐸 ⊆ (0...𝑁) ∧ ∃𝑥 ∈ (1...𝑁)𝐸 = {0, 𝑥})) |
| 14 | 2, 13 | bitrdi 287 | 1 ⊢ (𝑁 ∈ ℕ0 → (𝐸 ∈ (Edg‘(StarGr‘𝑁)) ↔ (𝐸 ⊆ (0...𝑁) ∧ ∃𝑥 ∈ (1...𝑁)𝐸 = {0, 𝑥}))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∃wrex 3061 {crab 3400 Vcvv 3441 ⊆ wss 3902 𝒫 cpw 4555 {cpr 4583 ‘cfv 6493 (class class class)co 7360 0cc0 11030 1c1 11031 ℕ0cn0 12405 ...cfz 13427 Edgcedg 29124 StarGrcstgr 48264 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5225 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7682 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-pre-mulgt0 11107 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4904 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-oadd 8403 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-dju 9817 df-card 9855 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12150 df-2 12212 df-3 12213 df-4 12214 df-5 12215 df-6 12216 df-7 12217 df-8 12218 df-9 12219 df-n0 12406 df-xnn0 12479 df-z 12493 df-dec 12612 df-uz 12756 df-fz 13428 df-hash 14258 df-struct 17078 df-slot 17113 df-ndx 17125 df-base 17141 df-edgf 29066 df-iedg 29076 df-edg 29125 df-stgr 48265 |
| This theorem is referenced by: stgredgiun 48271 stgrnbgr0 48277 isubgr3stgrlem6 48284 isubgr3stgrlem7 48285 |
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