| 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 12447 | . . 3 ⊢ 0 ∈ ℕ0 | |
| 2 | stgrfv 48445 | . . 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 13576 | . . . 4 ⊢ (0...0) = {0} | |
| 5 | 4 | opeq2i 4821 | . . 3 ⊢ 〈(Base‘ndx), (0...0)〉 = 〈(Base‘ndx), {0}〉 |
| 6 | rabeq0 4329 | . . . . . . 7 ⊢ ({𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}} = ∅ ↔ ∀𝑒 ∈ 𝒫 (0...0) ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) | |
| 7 | noel 4279 | . . . . . . . . . . . 12 ⊢ ¬ 𝑥 ∈ ∅ | |
| 8 | 7 | pm2.21i 119 | . . . . . . . . . . 11 ⊢ (𝑥 ∈ ∅ → ¬ 𝑒 = {0, 𝑥}) |
| 9 | fz10 13494 | . . . . . . . . . . 11 ⊢ (1...0) = ∅ | |
| 10 | 8, 9 | eleq2s 2855 | . . . . . . . . . 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 3129 | . . . . . . . 8 ⊢ (𝑒 ∈ 𝒫 (0...0) → ∀𝑥 ∈ (1...0) ¬ 𝑒 = {0, 𝑥}) |
| 13 | ralnex 3064 | . . . . . . . 8 ⊢ (∀𝑥 ∈ (1...0) ¬ 𝑒 = {0, 𝑥} ↔ ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) | |
| 14 | 12, 13 | sylib 218 | . . . . . . 7 ⊢ (𝑒 ∈ 𝒫 (0...0) → ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) |
| 15 | 6, 14 | mprgbir 3059 | . . . . . 6 ⊢ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}} = ∅ |
| 16 | 15 | reseq2i 5937 | . . . . 5 ⊢ ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}}) = ( I ↾ ∅) |
| 17 | res0 5944 | . . . . 5 ⊢ ( I ↾ ∅) = ∅ | |
| 18 | 16, 17 | eqtri 2760 | . . . 4 ⊢ ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}}) = ∅ |
| 19 | 18 | opeq2i 4821 | . . 3 ⊢ 〈(.ef‘ndx), ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}})〉 = 〈(.ef‘ndx), ∅〉 |
| 20 | 5, 19 | preq12i 4683 | . 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 2760 | 1 ⊢ (StarGr‘0) = {〈(Base‘ndx), {0}〉, 〈(.ef‘ndx), ∅〉} |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ∃wrex 3062 {crab 3390 ∅c0 4274 𝒫 cpw 4542 {csn 4568 {cpr 4570 〈cop 4574 I cid 5520 ↾ cres 5628 ‘cfv 6494 (class class class)co 7362 0cc0 11033 1c1 11034 ℕ0cn0 12432 ...cfz 13456 ndxcnx 17158 Basecbs 17174 .efcedgf 29075 StarGrcstgr 48443 |
| 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-sep 5232 ax-nul 5242 ax-pow 5304 ax-pr 5372 ax-un 7684 ax-cnex 11089 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 ax-pre-mulgt0 11110 |
| 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 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5521 df-eprel 5526 df-po 5534 df-so 5535 df-fr 5579 df-we 5581 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-pred 6261 df-ord 6322 df-on 6323 df-lim 6324 df-suc 6325 df-iota 6450 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-riota 7319 df-ov 7365 df-oprab 7366 df-mpo 7367 df-om 7813 df-1st 7937 df-2nd 7938 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-er 8638 df-en 8889 df-dom 8890 df-sdom 8891 df-pnf 11176 df-mnf 11177 df-xr 11178 df-ltxr 11179 df-le 11180 df-sub 11374 df-neg 11375 df-nn 12170 df-n0 12433 df-z 12520 df-uz 12784 df-fz 13457 df-stgr 48444 |
| This theorem is referenced by: (None) |
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