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| Mirrors > Home > MPE Home > Th. List > 00lsp | Structured version Visualization version GIF version | ||
| Description: fvco4i 6965 lemma for linear spans. (Contributed by Stefan O'Rear, 4-Apr-2015.) |
| Ref | Expression |
|---|---|
| 00lsp | ⊢ ∅ = (LSpan‘∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0ex 5256 | . . 3 ⊢ ∅ ∈ V | |
| 2 | base0 17233 | . . . 4 ⊢ ∅ = (Base‘∅) | |
| 3 | 00lss 20988 | . . . 4 ⊢ ∅ = (LSubSp‘∅) | |
| 4 | eqid 2761 | . . . 4 ⊢ (LSpan‘∅) = (LSpan‘∅) | |
| 5 | 2, 3, 4 | lspfval 21020 | . . 3 ⊢ (∅ ∈ V → (LSpan‘∅) = (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏})) |
| 6 | 1, 5 | ax-mp 5 | . 2 ⊢ (LSpan‘∅) = (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) |
| 7 | eqid 2761 | . . . . 5 ⊢ (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) | |
| 8 | 7 | dmmpt 6223 | . . . 4 ⊢ dom (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = {𝑎 ∈ 𝒫 ∅ ∣ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V} |
| 9 | rab0 4338 | . . . . . . . . 9 ⊢ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} = ∅ | |
| 10 | 9 | inteqi 4908 | . . . . . . . 8 ⊢ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} = ∩ ∅ |
| 11 | int0 4919 | . . . . . . . 8 ⊢ ∩ ∅ = V | |
| 12 | 10, 11 | eqtri 2784 | . . . . . . 7 ⊢ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} = V |
| 13 | vprc 5269 | . . . . . . 7 ⊢ ¬ V ∈ V | |
| 14 | 12, 13 | eqneltri 2880 | . . . . . 6 ⊢ ¬ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V |
| 15 | 14 | rgenw 3079 | . . . . 5 ⊢ ∀𝑎 ∈ 𝒫 ∅ ¬ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V |
| 16 | rabeq0 4341 | . . . . 5 ⊢ ({𝑎 ∈ 𝒫 ∅ ∣ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V} = ∅ ↔ ∀𝑎 ∈ 𝒫 ∅ ¬ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V) | |
| 17 | 15, 16 | mpbir 233 | . . . 4 ⊢ {𝑎 ∈ 𝒫 ∅ ∣ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V} = ∅ |
| 18 | 8, 17 | eqtri 2784 | . . 3 ⊢ dom (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅ |
| 19 | mptrel 5796 | . . . 4 ⊢ Rel (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) | |
| 20 | reldm0 5902 | . . . 4 ⊢ (Rel (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) → ((𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅ ↔ dom (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅)) | |
| 21 | 19, 20 | ax-mp 5 | . . 3 ⊢ ((𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅ ↔ dom (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅) |
| 22 | 18, 21 | mpbir 233 | . 2 ⊢ (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅ |
| 23 | 6, 22 | eqtr2i 2785 | 1 ⊢ ∅ = (LSpan‘∅) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 ↔ wb 208 = wceq 1559 ∈ wcel 2141 ∀wral 3075 {crab 3413 Vcvv 3453 ⊆ wss 3904 ∅c0 4285 𝒫 cpw 4554 ∩ cint 4904 ↦ cmpt 5180 dom cdm 5645 Rel wrel 5650 ‘cfv 6517 LSpanclspn 21018 |
| 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 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-cnex 11126 ax-1cn 11128 ax-addcl 11130 |
| 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-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4905 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6284 df-ord 6345 df-on 6346 df-lim 6347 df-suc 6348 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-ov 7395 df-om 7843 df-2nd 7967 df-frecs 8257 df-wrecs 8288 df-recs 8337 df-rdg 8376 df-nn 12208 df-slot 17201 df-ndx 17213 df-base 17229 df-lss 20979 df-lsp 21019 |
| This theorem is referenced by: rspval 21261 |
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