polsubclN - Mathbox for Norm Megill

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Theorem polsubclN 40057

Description: A polarity is a closed projective subspace. (Contributed by NM, 24-Jan-2012.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
polsubcl.a	⊢ 𝐴 = (Atoms‘𝐾)
polsubcl.p	⊢ ⊥ = (⊥_𝑃‘𝐾)
polsubcl.c	⊢ 𝐶 = (PSubCl‘𝐾)

**Assertion**
Ref	Expression
polsubclN	⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ 𝐴) → ( ⊥ ‘𝑋) ∈ 𝐶)

**Proof of Theorem polsubclN**
Step	Hyp	Ref	Expression
1		eqid 2731	. . 3 ⊢ (lub‘𝐾) = (lub‘𝐾)
2		eqid 2731	. . 3 ⊢ (oc‘𝐾) = (oc‘𝐾)
3		polsubcl.a	. . 3 ⊢ 𝐴 = (Atoms‘𝐾)
4		eqid 2731	. . 3 ⊢ (pmap‘𝐾) = (pmap‘𝐾)
5		polsubcl.p	. . 3 ⊢ ⊥ = (⊥_𝑃‘𝐾)
6	1, 2, 3, 4, 5	polval2N 40011	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ 𝐴) → ( ⊥ ‘𝑋) = ((pmap‘𝐾)‘((oc‘𝐾)‘((lub‘𝐾)‘𝑋))))
7		hlop 39467	. . . . 5 ⊢ (𝐾 ∈ HL → 𝐾 ∈ OP)
8	7	adantr 480	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ 𝐴) → 𝐾 ∈ OP)
9		hlclat 39463	. . . . 5 ⊢ (𝐾 ∈ HL → 𝐾 ∈ CLat)
10		eqid 2731	. . . . . . 7 ⊢ (Base‘𝐾) = (Base‘𝐾)
11	10, 3	atssbase 39395	. . . . . 6 ⊢ 𝐴 ⊆ (Base‘𝐾)
12		sstr 3938	. . . . . 6 ⊢ ((𝑋 ⊆ 𝐴 ∧ 𝐴 ⊆ (Base‘𝐾)) → 𝑋 ⊆ (Base‘𝐾))
13	11, 12	mpan2 691	. . . . 5 ⊢ (𝑋 ⊆ 𝐴 → 𝑋 ⊆ (Base‘𝐾))
14	10, 1	clatlubcl 18415	. . . . 5 ⊢ ((𝐾 ∈ CLat ∧ 𝑋 ⊆ (Base‘𝐾)) → ((lub‘𝐾)‘𝑋) ∈ (Base‘𝐾))
15	9, 13, 14	syl2an 596	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ 𝐴) → ((lub‘𝐾)‘𝑋) ∈ (Base‘𝐾))
16	10, 2	opoccl 39299	. . . 4 ⊢ ((𝐾 ∈ OP ∧ ((lub‘𝐾)‘𝑋) ∈ (Base‘𝐾)) → ((oc‘𝐾)‘((lub‘𝐾)‘𝑋)) ∈ (Base‘𝐾))
17	8, 15, 16	syl2anc 584	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ 𝐴) → ((oc‘𝐾)‘((lub‘𝐾)‘𝑋)) ∈ (Base‘𝐾))
18		polsubcl.c	. . . 4 ⊢ 𝐶 = (PSubCl‘𝐾)
19	10, 4, 18	pmapsubclN 40051	. . 3 ⊢ ((𝐾 ∈ HL ∧ ((oc‘𝐾)‘((lub‘𝐾)‘𝑋)) ∈ (Base‘𝐾)) → ((pmap‘𝐾)‘((oc‘𝐾)‘((lub‘𝐾)‘𝑋))) ∈ 𝐶)
20	17, 19	syldan 591	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ 𝐴) → ((pmap‘𝐾)‘((oc‘𝐾)‘((lub‘𝐾)‘𝑋))) ∈ 𝐶)
21	6, 20	eqeltrd 2831	1 ⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ 𝐴) → ( ⊥ ‘𝑋) ∈ 𝐶)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2111 ⊆ wss 3897 ‘cfv 6487 Basecbs 17126 occoc 17175 lubclub 18221 CLatccla 18410 OPcops 39277 Atomscatm 39368 HLchlt 39455 pmapcpmap 39602 ⊥_𝑃cpolN 40007 PSubClcpscN 40039

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 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5219 ax-sep 5236 ax-nul 5246 ax-pow 5305 ax-pr 5372 ax-un 7674

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-rmo 3346 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-nul 4283 df-if 4475 df-pw 4551 df-sn 4576 df-pr 4578 df-op 4582 df-uni 4859 df-iun 4943 df-iin 4944 df-br 5094 df-opab 5156 df-mpt 5175 df-id 5514 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-riota 7309 df-ov 7355 df-oprab 7356 df-proset 18206 df-poset 18225 df-plt 18240 df-lub 18256 df-glb 18257 df-join 18258 df-meet 18259 df-p0 18335 df-p1 18336 df-lat 18344 df-clat 18411 df-oposet 39281 df-ol 39283 df-oml 39284 df-covers 39371 df-ats 39372 df-atl 39403 df-cvlat 39427 df-hlat 39456 df-pmap 39609 df-polarityN 40008 df-psubclN 40040

This theorem is referenced by: osumcllem9N 40069 pexmidN 40074

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