| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > pol0N | Structured version Visualization version GIF version | ||
| Description: The polarity of the empty projective subspace is the whole space. (Contributed by NM, 29-Oct-2011.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| polssat.a | ⊢ 𝐴 = (Atoms‘𝐾) |
| polssat.p | ⊢ ⊥ = (⊥𝑃‘𝐾) |
| Ref | Expression |
|---|---|
| pol0N | ⊢ (𝐾 ∈ 𝐵 → ( ⊥ ‘∅) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0ss 4364 | . . 3 ⊢ ∅ ⊆ 𝐴 | |
| 2 | eqid 2769 | . . . 4 ⊢ (oc‘𝐾) = (oc‘𝐾) | |
| 3 | polssat.a | . . . 4 ⊢ 𝐴 = (Atoms‘𝐾) | |
| 4 | eqid 2769 | . . . 4 ⊢ (pmap‘𝐾) = (pmap‘𝐾) | |
| 5 | polssat.p | . . . 4 ⊢ ⊥ = (⊥𝑃‘𝐾) | |
| 6 | 2, 3, 4, 5 | polvalN 40569 | . . 3 ⊢ ((𝐾 ∈ 𝐵 ∧ ∅ ⊆ 𝐴) → ( ⊥ ‘∅) = (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝)))) |
| 7 | 1, 6 | mpan2 703 | . 2 ⊢ (𝐾 ∈ 𝐵 → ( ⊥ ‘∅) = (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝)))) |
| 8 | 0iin 5032 | . . . 4 ⊢ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝)) = V | |
| 9 | 8 | ineq2i 4178 | . . 3 ⊢ (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝))) = (𝐴 ∩ V) |
| 10 | inv1 4362 | . . 3 ⊢ (𝐴 ∩ V) = 𝐴 | |
| 11 | 9, 10 | eqtri 2792 | . 2 ⊢ (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝))) = 𝐴 |
| 12 | 7, 11 | eqtrdi 2820 | 1 ⊢ (𝐾 ∈ 𝐵 → ( ⊥ ‘∅) = 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1567 ∈ wcel 2149 Vcvv 3463 ∩ cin 3912 ⊆ wss 3913 ∅c0 4294 ∩ ciin 4961 ‘cfv 6537 occoc 17318 Atomscatm 39927 pmapcpmap 40161 ⊥𝑃cpolN 40566 |
| 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-rep 5242 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 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-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-iun 4962 df-iin 4963 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 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-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-polarityN 40567 |
| This theorem is referenced by: 2pol0N 40575 1psubclN 40608 osumcllem9N 40628 pexmidN 40633 pexmidlem6N 40639 pexmidALTN 40642 |
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