| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > 0psubclN | Structured version Visualization version GIF version | ||
| Description: The empty set is a closed projective subspace. (Contributed by NM, 25-Jan-2012.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| 0psubcl.c | ⊢ 𝐶 = (PSubCl‘𝐾) |
| Ref | Expression |
|---|---|
| 0psubclN | ⊢ (𝐾 ∈ HL → ∅ ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0ss 4354 | . . 3 ⊢ ∅ ⊆ (Atoms‘𝐾) | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐾 ∈ HL → ∅ ⊆ (Atoms‘𝐾)) |
| 3 | eqid 2737 | . . 3 ⊢ (⊥𝑃‘𝐾) = (⊥𝑃‘𝐾) | |
| 4 | 3 | 2pol0N 40287 | . 2 ⊢ (𝐾 ∈ HL → ((⊥𝑃‘𝐾)‘((⊥𝑃‘𝐾)‘∅)) = ∅) |
| 5 | eqid 2737 | . . 3 ⊢ (Atoms‘𝐾) = (Atoms‘𝐾) | |
| 6 | 0psubcl.c | . . 3 ⊢ 𝐶 = (PSubCl‘𝐾) | |
| 7 | 5, 3, 6 | ispsubclN 40313 | . 2 ⊢ (𝐾 ∈ HL → (∅ ∈ 𝐶 ↔ (∅ ⊆ (Atoms‘𝐾) ∧ ((⊥𝑃‘𝐾)‘((⊥𝑃‘𝐾)‘∅)) = ∅))) |
| 8 | 2, 4, 7 | mpbir2and 714 | 1 ⊢ (𝐾 ∈ HL → ∅ ∈ 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ⊆ wss 3903 ∅c0 4287 ‘cfv 6500 Atomscatm 39639 HLchlt 39726 ⊥𝑃cpolN 40278 PSubClcpscN 40310 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5226 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-iin 4951 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-proset 18229 df-poset 18248 df-plt 18263 df-lub 18279 df-glb 18280 df-join 18281 df-meet 18282 df-p0 18358 df-p1 18359 df-lat 18367 df-clat 18434 df-oposet 39552 df-ol 39554 df-oml 39555 df-covers 39642 df-ats 39643 df-atl 39674 df-cvlat 39698 df-hlat 39727 df-pmap 39880 df-polarityN 40279 df-psubclN 40311 |
| This theorem is referenced by: pclfinclN 40326 |
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