| 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 12519 | . . 3 ⊢ 0 ∈ ℕ0 | |
| 2 | stgrfv 48642 | . . 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 13655 | . . . 4 ⊢ (0...0) = {0} | |
| 5 | 4 | opeq2i 4844 | . . 3 ⊢ 〈(Base‘ndx), (0...0)〉 = 〈(Base‘ndx), {0}〉 |
| 6 | rabeq0 4350 | . . . . . . 7 ⊢ ({𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}} = ∅ ↔ ∀𝑒 ∈ 𝒫 (0...0) ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) | |
| 7 | noel 4297 | . . . . . . . . . . . 12 ⊢ ¬ 𝑥 ∈ ∅ | |
| 8 | 7 | pm2.21i 120 | . . . . . . . . . . 11 ⊢ (𝑥 ∈ ∅ → ¬ 𝑒 = {0, 𝑥}) |
| 9 | fz10 13573 | . . . . . . . . . . 11 ⊢ (1...0) = ∅ | |
| 10 | 8, 9 | eleq2s 2887 | . . . . . . . . . 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 3162 | . . . . . . . 8 ⊢ (𝑒 ∈ 𝒫 (0...0) → ∀𝑥 ∈ (1...0) ¬ 𝑒 = {0, 𝑥}) |
| 13 | ralnex 3097 | . . . . . . . 8 ⊢ (∀𝑥 ∈ (1...0) ¬ 𝑒 = {0, 𝑥} ↔ ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) | |
| 14 | 12, 13 | sylib 221 | . . . . . . 7 ⊢ (𝑒 ∈ 𝒫 (0...0) → ¬ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}) |
| 15 | 6, 14 | mprgbir 3092 | . . . . . 6 ⊢ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}} = ∅ |
| 16 | 15 | reseq2i 5976 | . . . . 5 ⊢ ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}}) = ( I ↾ ∅) |
| 17 | res0 5983 | . . . . 5 ⊢ ( I ↾ ∅) = ∅ | |
| 18 | 16, 17 | eqtri 2792 | . . . 4 ⊢ ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}}) = ∅ |
| 19 | 18 | opeq2i 4844 | . . 3 ⊢ 〈(.ef‘ndx), ( I ↾ {𝑒 ∈ 𝒫 (0...0) ∣ ∃𝑥 ∈ (1...0)𝑒 = {0, 𝑥}})〉 = 〈(.ef‘ndx), ∅〉 |
| 20 | 5, 19 | preq12i 4707 | . 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 2792 | 1 ⊢ (StarGr‘0) = {〈(Base‘ndx), {0}〉, 〈(.ef‘ndx), ∅〉} |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 = wceq 1567 ∈ wcel 2149 ∀wral 3085 ∃wrex 3095 {crab 3422 ∅c0 4292 𝒫 cpw 4565 {csn 4592 {cpr 4594 〈cop 4598 I cid 5556 ↾ cres 5664 ‘cfv 6537 (class class class)co 7411 0cc0 11100 1c1 11101 ℕ0cn0 12504 ...cfz 13535 ndxcnx 17253 Basecbs 17269 .efcedgf 29279 StarGrcstgr 48640 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5259 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-reu 3376 df-rab 3423 df-v 3463 df-sbc 3752 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-er 8694 df-en 8944 df-dom 8945 df-sdom 8946 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-nn 12234 df-n0 12505 df-z 12592 df-uz 12863 df-fz 13536 df-stgr 48641 |
| This theorem is referenced by: (None) |
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