Theorem pmapglb2N 36922

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 36513	. . . . 5 ⊢ (𝐾 ∈ HL → 𝐾 ∈ OP)
2		pmapglb2.g	. . . . . . . 8 ⊢ 𝐺 = (glb‘𝐾)
3		eqid 2821	. . . . . . . 8 ⊢ (1.‘𝐾) = (1.‘𝐾)
4	2, 3	glb0N 36344	. . . . . . 7 ⊢ (𝐾 ∈ OP → (𝐺‘∅) = (1.‘𝐾))
5	4	fveq2d 6674	. . . . . 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 36918	. . . . . 6 ⊢ (𝐾 ∈ OP → (𝑀‘(1.‘𝐾)) = 𝐴)
9	5, 8	eqtrd 2856	. . . . 5 ⊢ (𝐾 ∈ OP → (𝑀‘(𝐺‘∅)) = 𝐴)
10	1, 9	syl 17	. . . 4 ⊢ (𝐾 ∈ HL → (𝑀‘(𝐺‘∅)) = 𝐴)
11		2fveq3 6675	. . . . 5 ⊢ (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝑀‘(𝐺‘∅)))
12		riin0 5004	. . . . 5 ⊢ (𝑆 = ∅ → (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = 𝐴)
13	11, 12	eqeq12d 2837	. . . 4 ⊢ (𝑆 = ∅ → ((𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) ↔ (𝑀‘(𝐺‘∅)) = 𝐴))
14	10, 13	syl5ibrcom 249	. . 3 ⊢ (𝐾 ∈ HL → (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
15	14	adantr 483	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
16		pmapglb2.b	. . . . 5 ⊢ 𝐵 = (Base‘𝐾)
17	16, 2, 7	pmapglb 36921	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝑀‘(𝐺‘𝑆)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
18		simpr 487	. . . . . . . . . . 11 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑆)
19		simpll 765	. . . . . . . . . . . 12 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝐾 ∈ HL)
20		ssel2 3962	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ 𝐵 ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝐵)
21	20	adantll 712	. . . . . . . . . . . 12 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝐵)
22	16, 6, 7	pmapssat 36910	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ HL ∧ 𝑥 ∈ 𝐵) → (𝑀‘𝑥) ⊆ 𝐴)
23	19, 21, 22	syl2anc 586	. . . . . . . . . . 11 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → (𝑀‘𝑥) ⊆ 𝐴)
24	18, 23	jca 514	. . . . . . . . . 10 ⊢ (((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) ∧ 𝑥 ∈ 𝑆) → (𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴))
25	24	ex 415	. . . . . . . . 9 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑥 ∈ 𝑆 → (𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴)))
26	25	eximdv 1918	. . . . . . . 8 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (∃𝑥 𝑥 ∈ 𝑆 → ∃𝑥(𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴)))
27		n0 4310	. . . . . . . 8 ⊢ (𝑆 ≠ ∅ ↔ ∃𝑥 𝑥 ∈ 𝑆)
28		df-rex 3144	. . . . . . . 8 ⊢ (∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 ↔ ∃𝑥(𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴))
29	26, 27, 28	3imtr4g 298	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 ≠ ∅ → ∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴))
30	29	3impia 1113	. . . . . 6 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → ∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
31		iinss 4980	. . . . . 6 ⊢ (∃𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 → ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
32	30, 31	syl 17	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴)
33		sseqin2 4192	. . . . 5 ⊢ (∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥) ⊆ 𝐴 ↔ (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
34	32, 33	sylib 220	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))
35	17, 34	eqtr4d 2859	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵 ∧ 𝑆 ≠ ∅) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))
36	35	3expia 1117	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑆 ≠ ∅ → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥))))
37	15, 36	pm2.61dne 3103	1 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))

Syntax hints:   → wi 4   ∧ wa 398   ∧ w3a 1083   = wceq 1537  ∃wex 1780   ∈ wcel 2114   ≠ wne 3016  ∃wrex 3139   ∩ cin 3935   ⊆ wss 3936  ∅c0 4291  ∩ ciin 4920  ‘cfv 6355  Basecbs 16483  glbcglb 17553  1.cp1 17648  OPcops 36323  Atomscatm 36414  HLchlt 36501  pmapcpmap 36648

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 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-rep 5190  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4839  df-iun 4921  df-iin 4922  df-br 5067  df-opab 5129  df-mpt 5147  df-id 5460  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-riota 7114  df-ov 7159  df-oprab 7160  df-proset 17538  df-poset 17556  df-lub 17584  df-glb 17585  df-join 17586  df-meet 17587  df-p1 17650  df-lat 17656  df-clat 17718  df-oposet 36327  df-ol 36329  df-oml 36330  df-ats 36418  df-hlat 36502  df-pmap 36655

This theorem is referenced by: (None)