Theorem pmapglb2N 35057

Description: The projective map of the GLB of a set of lattice elements 𝑆. Variant of Theorem 15.5.2 of [MaedaMaeda] p. 62. Allows 𝑆 = ∅. (Contributed by NM, 21-Jan-2012.) (New usage is discouraged.)

Hypotheses

Ref	Expression
pmapglb2.b	⊢ 𝐵 = (Base‘𝐾)
pmapglb2.g	⊢ 𝐺 = (glb‘𝐾)
pmapglb2.a	⊢ 𝐴 = (Atoms‘𝐾)
pmapglb2.m	⊢ 𝑀 = (pmap‘𝐾)

Assertion

Ref	Expression
pmapglb2N	⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))

Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐾   𝑥,𝑆

Allowed substitution hints:   𝐺(𝑥)   𝑀(𝑥)

Proof of Theorem pmapglb2N

Step	Hyp	Ref	Expression
1		hlop 34649	. . . . 5 ⊢ (𝐾 ∈ HL → 𝐾 ∈ OP)
2		pmapglb2.g	. . . . . . . 8 ⊢ 𝐺 = (glb‘𝐾)
3		eqid 2622	. . . . . . . 8 ⊢ (1.‘𝐾) = (1.‘𝐾)
4	2, 3	glb0N 34480	. . . . . . 7 ⊢ (𝐾 ∈ OP → (𝐺‘∅) = (1.‘𝐾))
5	4	fveq2d 6195	. . . . . 6 ⊢ (𝐾 ∈ OP → (𝑀‘(𝐺‘∅)) = (𝑀‘(1.‘𝐾)))
6		pmapglb2.a	. . . . . . 7 ⊢ 𝐴 = (Atoms‘𝐾)
7		pmapglb2.m	. . . . . . 7 ⊢ 𝑀 = (pmap‘𝐾)
8	3, 6, 7	pmap1N 35053	. . . . . 6 ⊢ (𝐾 ∈ OP → (𝑀‘(1.‘𝐾)) = 𝐴)
9	5, 8	eqtrd 2656	. . . . 5 ⊢ (𝐾 ∈ OP → (𝑀‘(𝐺‘∅)) = 𝐴)
10	1, 9	syl 17	. . . 4 ⊢ (𝐾 ∈ HL → (𝑀‘(𝐺‘∅)) = 𝐴)
11		fveq2 6191	. . . . . 6 ⊢ (𝑆 = ∅ → (𝐺‘𝑆) = (𝐺‘∅))
12	11	fveq2d 6195	. . . . 5 ⊢ (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝑀‘(𝐺‘∅)))
13		riin0 4594	. . . . 5 ⊢ (𝑆 = ∅ → (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = 𝐴)
14	12, 13	eqeq12d 2637	. . . 4 ⊢ (𝑆 = ∅ → ((𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) ↔ (𝑀‘(𝐺‘∅)) = 𝐴))
15	10, 14	syl5ibrcom 237	. . 3 ⊢ (𝐾 ∈ HL → (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
16	15	adantr 481	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
17		pmapglb2.b	. . . . 5 ⊢ 𝐵 = (Base‘𝐾)
18	17, 2, 7	pmapglb 35056	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝑀‘(𝐺‘𝑆)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
19		simpr 477	. . . . . . . . . . 11 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑆)
20		simpll 790	. . . . . . . . . . . 12 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝐾 ∈ HL)
21		ssel2 3598	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝐵)
22	21	adantll 750	. . . . . . . . . . . 12 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝐵)
23	17, 6, 7	pmapssat 35045	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ HL ∧ 𝑥 ∈ 𝐵) → (𝑀‘𝑥) ⊆ 𝐴)
24	20, 22, 23	syl2anc 693	. . . . . . . . . . 11 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → (𝑀‘𝑥) ⊆ 𝐴)
25	19, 24	jca 554	. . . . . . . . . 10 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → (𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴))
26	25	ex 450	. . . . . . . . 9 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑥 ∈ 𝑆 → (𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴)))
27	26	eximdv 1846	. . . . . . . 8 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (∃𝑥 𝑥 ∈ 𝑆 → ∃𝑥(𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴)))
28		n0 3931	. . . . . . . 8 ⊢ (𝑆 ≠ ∅ ↔ ∃𝑥 𝑥 ∈ 𝑆)
29		df-rex 2918	. . . . . . . 8 ⊢ (∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 ↔ ∃𝑥(𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴))
30	27, 28, 29	3imtr4g 285	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 ≠ ∅ → ∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴))
31	30	3impia 1261	. . . . . 6 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → ∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
32		iinss 4571	. . . . . 6 ⊢ (∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 → ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
33	31, 32	syl 17	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
34		sseqin2 3817	. . . . 5 ⊢ (∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 ↔ (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
35	33, 34	sylib 208	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
36	18, 35	eqtr4d 2659	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))
37	36	3expia 1267	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 ≠ ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
38	16, 37	pm2.61dne 2880	1 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))

Syntax hints:   → wi 4   ∧ wa 384   ∧ w3a 1037   = wceq 1483  ∃wex 1704   ∈ wcel 1990   ≠ wne 2794  ∃wrex 2913   ∩ cin 3573   ⊆ wss 3574  ∅c0 3915  ∩ ciin 4521  ‘cfv 5888  Basecbs 15857  glbcglb 16943  1.cp1 17038  OPcops 34459  Atomscatm 34550  HLchlt 34637  pmapcpmap 34783

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-reu 2919  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-iin 4523  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-preset 16928  df-poset 16946  df-lub 16974  df-glb 16975  df-join 16976  df-meet 16977  df-p1 17040  df-lat 17046  df-clat 17108  df-oposet 34463  df-ol 34465  df-oml 34466  df-ats 34554  df-hlat 34638  df-pmap 34790

This theorem is referenced by: (None)