| 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 4354 | . . 3 ⊢ ∅ ⊆ 𝐴 | |
| 2 | eqid 2762 | . . . 4 ⊢ (oc‘𝐾) = (oc‘𝐾) | |
| 3 | polssat.a | . . . 4 ⊢ 𝐴 = (Atoms‘𝐾) | |
| 4 | eqid 2762 | . . . 4 ⊢ (pmap‘𝐾) = (pmap‘𝐾) | |
| 5 | polssat.p | . . . 4 ⊢ ⊥ = (⊥𝑃‘𝐾) | |
| 6 | 2, 3, 4, 5 | polvalN 40529 | . . 3 ⊢ ((𝐾 ∈ 𝐵 ∧ ∅ ⊆ 𝐴) → ( ⊥ ‘∅) = (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝)))) |
| 7 | 1, 6 | mpan2 701 | . 2 ⊢ (𝐾 ∈ 𝐵 → ( ⊥ ‘∅) = (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝)))) |
| 8 | 0iin 5021 | . . . 4 ⊢ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝)) = V | |
| 9 | 8 | ineq2i 4169 | . . 3 ⊢ (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝))) = (𝐴 ∩ V) |
| 10 | inv1 4352 | . . 3 ⊢ (𝐴 ∩ V) = 𝐴 | |
| 11 | 9, 10 | eqtri 2785 | . 2 ⊢ (𝐴 ∩ ∩ 𝑝 ∈ ∅ ((pmap‘𝐾)‘((oc‘𝐾)‘𝑝))) = 𝐴 |
| 12 | 7, 11 | eqtrdi 2813 | 1 ⊢ (𝐾 ∈ 𝐵 → ( ⊥ ‘∅) = 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1560 ∈ wcel 2142 Vcvv 3454 ∩ cin 3903 ⊆ wss 3904 ∅c0 4285 ∩ ciin 4950 ‘cfv 6521 occoc 17294 Atomscatm 39887 pmapcpmap 40121 ⊥𝑃cpolN 40526 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5227 ax-sep 5246 ax-nul 5256 ax-pow 5322 ax-pr 5390 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3077 df-rex 3087 df-reu 3368 df-rab 3415 df-v 3456 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4951 df-iin 4952 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-polarityN 40527 |
| This theorem is referenced by: 2pol0N 40535 1psubclN 40568 osumcllem9N 40588 pexmidN 40593 pexmidlem6N 40599 pexmidALTN 40602 |
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