Theorem pmapglb2N 36911

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 36502	. . . . 5 ⊢ (𝐾 ∈ HL → 𝐾 ∈ OP)
2		pmapglb2.g	. . . . . . . 8 ⊢ 𝐺 = (glb‘𝐾)
3		eqid 2824	. . . . . . . 8 ⊢ (1.‘𝐾) = (1.‘𝐾)
4	2, 3	glb0N 36333	. . . . . . 7 ⊢ (𝐾 ∈ OP → (𝐺‘∅) = (1.‘𝐾))
5	4	fveq2d 6677	. . . . . 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 36907	. . . . . 6 ⊢ (𝐾 ∈ OP → (𝑀‘(1.‘𝐾)) = 𝐴)
9	5, 8	eqtrd 2859	. . . . 5 ⊢ (𝐾 ∈ OP → (𝑀‘(𝐺‘∅)) = 𝐴)
10	1, 9	syl 17	. . . 4 ⊢ (𝐾 ∈ HL → (𝑀‘(𝐺‘∅)) = 𝐴)
11		2fveq3 6678	. . . . 5 ⊢ (𝑆 = ∅ → (𝑀‘(𝐺‘𝑆)) = (𝑀‘(𝐺‘∅)))
12		riin0 5007	. . . . 5 ⊢ (𝑆 = ∅ → (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)) = 𝐴)
13	11, 12	eqeq12d 2840	. . . 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 36910	. . . 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 3965	. . . . . . . . . . . . 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 36899	. . . . . . . . . . . 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 1917	. . . . . . . 8 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (∃𝑥 𝑥 ∈ 𝑆 → ∃𝑥(𝑥 ∈ 𝑆 ∧ (𝑀‘𝑥) ⊆ 𝐴)))
27		n0 4313	. . . . . . . 8 ⊢ (𝑆 ≠ ∅ ↔ ∃𝑥 𝑥 ∈ 𝑆)
28		df-rex 3147	. . . . . . . 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 4983	. . . . . 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 4195	. . . . 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 2862	. . 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 3106	1 ⊢ ((𝐾 ∈ HL ∧ 𝑆 ⊆ 𝐵) → (𝑀‘(𝐺‘𝑆)) = (𝐴 ∩ ∩ 𝑥 ∈ 𝑆 (𝑀‘𝑥)))

Syntax hints:   → wi 4   ∧ wa 398   ∧ w3a 1083   = wceq 1536  ∃wex 1779   ∈ wcel 2113   ≠ wne 3019  ∃wrex 3142   ∩ cin 3938   ⊆ wss 3939  ∅c0 4294  ∩ ciin 4923  ‘cfv 6358  Basecbs 16486  glbcglb 17556  1.cp1 17651  OPcops 36312  Atomscatm 36403  HLchlt 36490  pmapcpmap 36637

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1969  ax-7 2014  ax-8 2115  ax-9 2123  ax-10 2144  ax-11 2160  ax-12 2176  ax-ext 2796  ax-rep 5193  ax-sep 5206  ax-nul 5213  ax-pow 5269  ax-pr 5333  ax-un 7464

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1539  df-ex 1780  df-nf 1784  df-sb 2069  df-mo 2621  df-eu 2653  df-clab 2803  df-cleq 2817  df-clel 2896  df-nfc 2966  df-ne 3020  df-ral 3146  df-rex 3147  df-reu 3148  df-rab 3150  df-v 3499  df-sbc 3776  df-csb 3887  df-dif 3942  df-un 3944  df-in 3946  df-ss 3955  df-nul 4295  df-if 4471  df-pw 4544  df-sn 4571  df-pr 4573  df-op 4577  df-uni 4842  df-iun 4924  df-iin 4925  df-br 5070  df-opab 5132  df-mpt 5150  df-id 5463  df-xp 5564  df-rel 5565  df-cnv 5566  df-co 5567  df-dm 5568  df-rn 5569  df-res 5570  df-ima 5571  df-iota 6317  df-fun 6360  df-fn 6361  df-f 6362  df-f1 6363  df-fo 6364  df-f1o 6365  df-fv 6366  df-riota 7117  df-ov 7162  df-oprab 7163  df-proset 17541  df-poset 17559  df-lub 17587  df-glb 17588  df-join 17589  df-meet 17590  df-p1 17653  df-lat 17659  df-clat 17721  df-oposet 36316  df-ol 36318  df-oml 36319  df-ats 36407  df-hlat 36491  df-pmap 36644

This theorem is referenced by: (None)