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| Mirrors > Home > MPE Home > Th. List > 00lsp | Structured version Visualization version GIF version | ||
| Description: fvco4i 6935 lemma for linear spans. (Contributed by Stefan O'Rear, 4-Apr-2015.) |
| Ref | Expression |
|---|---|
| 00lsp | ⊢ ∅ = (LSpan‘∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0ex 5252 | . . 3 ⊢ ∅ ∈ V | |
| 2 | base0 17141 | . . . 4 ⊢ ∅ = (Base‘∅) | |
| 3 | 00lss 20892 | . . . 4 ⊢ ∅ = (LSubSp‘∅) | |
| 4 | eqid 2736 | . . . 4 ⊢ (LSpan‘∅) = (LSpan‘∅) | |
| 5 | 2, 3, 4 | lspfval 20924 | . . 3 ⊢ (∅ ∈ V → (LSpan‘∅) = (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏})) |
| 6 | 1, 5 | ax-mp 5 | . 2 ⊢ (LSpan‘∅) = (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) |
| 7 | eqid 2736 | . . . . 5 ⊢ (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) | |
| 8 | 7 | dmmpt 6198 | . . . 4 ⊢ dom (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = {𝑎 ∈ 𝒫 ∅ ∣ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V} |
| 9 | rab0 4338 | . . . . . . . . 9 ⊢ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} = ∅ | |
| 10 | 9 | inteqi 4906 | . . . . . . . 8 ⊢ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} = ∩ ∅ |
| 11 | int0 4917 | . . . . . . . 8 ⊢ ∩ ∅ = V | |
| 12 | 10, 11 | eqtri 2759 | . . . . . . 7 ⊢ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} = V |
| 13 | vprc 5260 | . . . . . . 7 ⊢ ¬ V ∈ V | |
| 14 | 12, 13 | eqneltri 2855 | . . . . . 6 ⊢ ¬ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V |
| 15 | 14 | rgenw 3055 | . . . . 5 ⊢ ∀𝑎 ∈ 𝒫 ∅ ¬ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V |
| 16 | rabeq0 4340 | . . . . 5 ⊢ ({𝑎 ∈ 𝒫 ∅ ∣ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V} = ∅ ↔ ∀𝑎 ∈ 𝒫 ∅ ¬ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V) | |
| 17 | 15, 16 | mpbir 231 | . . . 4 ⊢ {𝑎 ∈ 𝒫 ∅ ∣ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏} ∈ V} = ∅ |
| 18 | 8, 17 | eqtri 2759 | . . 3 ⊢ dom (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅ |
| 19 | mptrel 5774 | . . . 4 ⊢ Rel (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) | |
| 20 | reldm0 5877 | . . . 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 231 | . 2 ⊢ (𝑎 ∈ 𝒫 ∅ ↦ ∩ {𝑏 ∈ ∅ ∣ 𝑎 ⊆ 𝑏}) = ∅ |
| 23 | 6, 22 | eqtr2i 2760 | 1 ⊢ ∅ = (LSpan‘∅) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 ↔ wb 206 = wceq 1541 ∈ wcel 2113 ∀wral 3051 {crab 3399 Vcvv 3440 ⊆ wss 3901 ∅c0 4285 𝒫 cpw 4554 ∩ cint 4902 ↦ cmpt 5179 dom cdm 5624 Rel wrel 5629 ‘cfv 6492 LSpanclspn 20922 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-rep 5224 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11082 ax-1cn 11084 ax-addcl 11086 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-int 4903 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-tr 5206 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7361 df-om 7809 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-nn 12146 df-slot 17109 df-ndx 17121 df-base 17137 df-lss 20883 df-lsp 20923 |
| This theorem is referenced by: rspval 21166 |
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