| Mathbox for Alexander van der Vekens |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > stgr0 | Structured version Visualization version GIF version | ||
| Description: The star graph S0 consists of a single vertex without edges. (Contributed by AV, 11-Sep-2025.) |
| Ref | Expression |
|---|---|
| stgr0 | ⊢ (StarGr‘0) = {〈(Base‘ndx), {0}〉, 〈(.ef‘ndx), ∅〉} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0nn0 12498 | . . 3 ⊢ 0 ∈ ℕ0 | |
| 2 | stgrfv 48580 | . . 3 ⊢ (0 ∈ ℕ0 → (StarGr‘0) = {〈(Base‘ndx), (0...0)〉, 〈(.ef‘ndx), ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}})〉}) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (StarGr‘0) = {〈(Base‘ndx), (0...0)〉, 〈(.ef‘ndx), ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}})〉} |
| 4 | fz0sn 13634 | . . . 4 ⊢ (0...0) = {0} | |
| 5 | 4 | opeq2i 4837 | . . 3 ⊢ 〈(Base‘ndx), (0...0)〉 = 〈(Base‘ndx), {0}〉 |
| 6 | rabeq0 4344 | . . . . . . 7 ⊢ ({𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}} = ∅ ↔ ∀𝑒 ∈ 𝒫 (0...0) ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) | |
| 7 | noel 4292 | . . . . . . . . . . . 12 ⊢ ¬ 𝑥 ∈ ∅ | |
| 8 | 7 | pm2.21i 119 | . . . . . . . . . . 11 ⊢ (𝑥 ∈ ∅ → ¬ 𝑒 = {0, 𝑥}) |
| 9 | fz10 13552 | . . . . . . . . . . 11 ⊢ (1...0) = ∅ | |
| 10 | 8, 9 | eleq2s 2882 | . . . . . . . . . 10 ⊢ (𝑥 ∈ (1...0) → ¬ 𝑒 = {0, 𝑥}) |
| 11 | 10 | a1i 11 | . . . . . . . . 9 ⊢ (𝑒 ∈ 𝒫 (0...0) → (𝑥 ∈ (1...0) → ¬ 𝑒 = {0, 𝑥})) |
| 12 | 11 | ralrimiv 3155 | . . . . . . . 8 ⊢ (𝑒 ∈ 𝒫 (0...0) → ∀𝑥 ∈ (1...0) ¬ 𝑒 = {0, 𝑥}) |
| 13 | ralnex 3090 | . . . . . . . 8 ⊢ (∀𝑥 ∈ (1...0) ¬ 𝑒 = {0, 𝑥} ↔ ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) | |
| 14 | 12, 13 | sylib 220 | . . . . . . 7 ⊢ (𝑒 ∈ 𝒫 (0...0) → ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) |
| 15 | 6, 14 | mprgbir 3085 | . . . . . 6 ⊢ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}} = ∅ |
| 16 | 15 | reseq2i 5964 | . . . . 5 ⊢ ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}}) = ( I ↾ ∅) |
| 17 | res0 5971 | . . . . 5 ⊢ ( I ↾ ∅) = ∅ | |
| 18 | 16, 17 | eqtri 2787 | . . . 4 ⊢ ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}}) = ∅ |
| 19 | 18 | opeq2i 4837 | . . 3 ⊢ 〈(.ef‘ndx), ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}})〉 = 〈(.ef‘ndx), ∅〉 |
| 20 | 5, 19 | preq12i 4699 | . 2 ⊢ {〈(Base‘ndx), (0...0)〉, 〈(.ef‘ndx), ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}})〉} = {〈(Base‘ndx), {0}〉, 〈(.ef‘ndx), ∅〉} |
| 21 | 3, 20 | eqtri 2787 | 1 ⊢ (StarGr‘0) = {〈(Base‘ndx), {0}〉, 〈(.ef‘ndx), ∅〉} |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 = wceq 1562 ∈ wcel 2144 ∀wral 3078 ∃wrex 3088 {crab 3416 ∅c0 4287 𝒫 cpw 4557 {csn 4584 {cpr 4586 〈cop 4590 I cid 5543 ↾ cres 5651 ‘cfv 6523 (class class class)co 7398 0cc0 11075 1c1 11076 ℕ0cn0 12483 ...cfz 13514 ndxcnx 17231 Basecbs 17247 .efcedgf 29191 StarGrcstgr 48578 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-sep 5248 ax-nul 5258 ax-pow 5324 ax-pr 5392 ax-un 7720 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3370 df-rab 3417 df-v 3458 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5544 df-eprel 5549 df-po 5557 df-so 5558 df-fr 5602 df-we 5604 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-res 5661 df-ima 5662 df-pred 6290 df-ord 6351 df-on 6352 df-lim 6353 df-suc 6354 df-iota 6479 df-fun 6525 df-fn 6526 df-f 6527 df-f1 6528 df-fo 6529 df-f1o 6530 df-fv 6531 df-riota 7355 df-ov 7401 df-oprab 7402 df-mpo 7403 df-om 7849 df-1st 7972 df-2nd 7973 df-frecs 8264 df-wrecs 8295 df-recs 8344 df-rdg 8383 df-er 8680 df-en 8930 df-dom 8931 df-sdom 8932 df-pnf 11220 df-mnf 11221 df-xr 11222 df-ltxr 11223 df-le 11224 df-sub 11418 df-neg 11419 df-nn 12213 df-n0 12484 df-z 12571 df-uz 12842 df-fz 13515 df-stgr 48579 |
| This theorem is referenced by: (None) |
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