mdsl2i - Hilbert Space Explorer

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Theorem mdsl2i 30684

Description: If the modular pair property holds in a sublattice, it holds in the whole lattice. Lemma 1.4 of [MaedaMaeda] p. 2. (Contributed by NM, 28-Apr-2006.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
mdsl.1	⊢ 𝐴 ∈ C_ℋ
mdsl.2	⊢ 𝐵 ∈ C_ℋ

**Assertion**
Ref	Expression
mdsl2i	⊢ (𝐴 𝑀_ℋ 𝐵 ↔ ∀𝑥 ∈ C_ℋ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))))

Distinct variable groups: 𝑥,𝐴 𝑥,𝐵

**Proof of Theorem mdsl2i**
Step	Hyp	Ref	Expression
1		mdsl.1	. . . . . . . . . . . 12 ⊢ 𝐴 ∈ C_ℋ
2		chub1 29869	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ C_ℋ ∧ 𝐴 ∈ C_ℋ ) → 𝑥 ⊆ (𝑥 ∨_ℋ 𝐴))
3	1, 2	mpan2 688	. . . . . . . . . . 11 ⊢ (𝑥 ∈ C_ℋ → 𝑥 ⊆ (𝑥 ∨_ℋ 𝐴))
4		iba 528	. . . . . . . . . . . 12 ⊢ (𝑥 ⊆ 𝐵 → (𝑥 ⊆ (𝑥 ∨_ℋ 𝐴) ↔ (𝑥 ⊆ (𝑥 ∨_ℋ 𝐴) ∧ 𝑥 ⊆ 𝐵)))
5		ssin 4164	. . . . . . . . . . . 12 ⊢ ((𝑥 ⊆ (𝑥 ∨_ℋ 𝐴) ∧ 𝑥 ⊆ 𝐵) ↔ 𝑥 ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵))
6	4, 5	bitrdi 287	. . . . . . . . . . 11 ⊢ (𝑥 ⊆ 𝐵 → (𝑥 ⊆ (𝑥 ∨_ℋ 𝐴) ↔ 𝑥 ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)))
7	3, 6	syl5ibcom 244	. . . . . . . . . 10 ⊢ (𝑥 ∈ C_ℋ → (𝑥 ⊆ 𝐵 → 𝑥 ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)))
8		chub2 29870	. . . . . . . . . . . 12 ⊢ ((𝐴 ∈ C_ℋ ∧ 𝑥 ∈ C_ℋ ) → 𝐴 ⊆ (𝑥 ∨_ℋ 𝐴))
9	1, 8	mpan 687	. . . . . . . . . . 11 ⊢ (𝑥 ∈ C_ℋ → 𝐴 ⊆ (𝑥 ∨_ℋ 𝐴))
10	9	ssrind 4169	. . . . . . . . . 10 ⊢ (𝑥 ∈ C_ℋ → (𝐴 ∩ 𝐵) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵))
11	7, 10	jctird 527	. . . . . . . . 9 ⊢ (𝑥 ∈ C_ℋ → (𝑥 ⊆ 𝐵 → (𝑥 ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∧ (𝐴 ∩ 𝐵) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵))))
12		chjcl 29719	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ C_ℋ ∧ 𝐴 ∈ C_ℋ ) → (𝑥 ∨_ℋ 𝐴) ∈ C_ℋ )
13	1, 12	mpan2 688	. . . . . . . . . . 11 ⊢ (𝑥 ∈ C_ℋ → (𝑥 ∨_ℋ 𝐴) ∈ C_ℋ )
14		mdsl.2	. . . . . . . . . . . 12 ⊢ 𝐵 ∈ C_ℋ
15		chincl 29861	. . . . . . . . . . . 12 ⊢ (((𝑥 ∨_ℋ 𝐴) ∈ C_ℋ ∧ 𝐵 ∈ C_ℋ ) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∈ C_ℋ )
16	14, 15	mpan2 688	. . . . . . . . . . 11 ⊢ ((𝑥 ∨_ℋ 𝐴) ∈ C_ℋ → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∈ C_ℋ )
17	13, 16	syl 17	. . . . . . . . . 10 ⊢ (𝑥 ∈ C_ℋ → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∈ C_ℋ )
18	1, 14	chincli 29822	. . . . . . . . . . 11 ⊢ (𝐴 ∩ 𝐵) ∈ C_ℋ
19		chlub 29871	. . . . . . . . . . 11 ⊢ ((𝑥 ∈ C_ℋ ∧ (𝐴 ∩ 𝐵) ∈ C_ℋ ∧ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∈ C_ℋ ) → ((𝑥 ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∧ (𝐴 ∩ 𝐵) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)) ↔ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)))
20	18, 19	mp3an2 1448	. . . . . . . . . 10 ⊢ ((𝑥 ∈ C_ℋ ∧ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∈ C_ℋ ) → ((𝑥 ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∧ (𝐴 ∩ 𝐵) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)) ↔ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)))
21	17, 20	mpdan 684	. . . . . . . . 9 ⊢ (𝑥 ∈ C_ℋ → ((𝑥 ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ∧ (𝐴 ∩ 𝐵) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)) ↔ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)))
22	11, 21	sylibd 238	. . . . . . . 8 ⊢ (𝑥 ∈ C_ℋ → (𝑥 ⊆ 𝐵 → (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)))
23		eqss 3936	. . . . . . . . 9 ⊢ (((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ↔ (((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ∧ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵)))
24	23	rbaib 539	. . . . . . . 8 ⊢ ((𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ⊆ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) → (((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ↔ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))))
25	22, 24	syl6 35	. . . . . . 7 ⊢ (𝑥 ∈ C_ℋ → (𝑥 ⊆ 𝐵 → (((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ↔ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)))))
26	25	adantld 491	. . . . . 6 ⊢ (𝑥 ∈ C_ℋ → (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → (((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)) ↔ ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)))))
27	26	pm5.74d 272	. . . . 5 ⊢ (𝑥 ∈ C_ℋ → ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))) ↔ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)))))
28	14, 1	chub2i 29832	. . . . . . . . . 10 ⊢ 𝐵 ⊆ (𝐴 ∨_ℋ 𝐵)
29		sstr 3929	. . . . . . . . . 10 ⊢ ((𝑥 ⊆ 𝐵 ∧ 𝐵 ⊆ (𝐴 ∨_ℋ 𝐵)) → 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵))
30	28, 29	mpan2 688	. . . . . . . . 9 ⊢ (𝑥 ⊆ 𝐵 → 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵))
31	30	pm4.71ri 561	. . . . . . . 8 ⊢ (𝑥 ⊆ 𝐵 ↔ (𝑥 ⊆ (𝐴 ∨_ℋ 𝐵) ∧ 𝑥 ⊆ 𝐵))
32	31	anbi2i 623	. . . . . . 7 ⊢ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) ↔ ((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ (𝑥 ⊆ (𝐴 ∨_ℋ 𝐵) ∧ 𝑥 ⊆ 𝐵)))
33		anass 469	. . . . . . 7 ⊢ ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵) ↔ ((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ (𝑥 ⊆ (𝐴 ∨_ℋ 𝐵) ∧ 𝑥 ⊆ 𝐵)))
34	32, 33	bitr4i 277	. . . . . 6 ⊢ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) ↔ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵))
35	34	imbi1i 350	. . . . 5 ⊢ ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))) ↔ ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))))
36	27, 35	bitr3di 286	. . . 4 ⊢ (𝑥 ∈ C_ℋ → ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))) ↔ ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)))))
37		impexp 451	. . . 4 ⊢ (((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))) ↔ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) → (𝑥 ⊆ 𝐵 → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)))))
38	36, 37	bitrdi 287	. . 3 ⊢ (𝑥 ∈ C_ℋ → ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))) ↔ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) → (𝑥 ⊆ 𝐵 → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))))))
39	38	ralbiia 3091	. 2 ⊢ (∀𝑥 ∈ C_ℋ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))) ↔ ∀𝑥 ∈ C_ℋ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) → (𝑥 ⊆ 𝐵 → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)))))
40	1, 14	mdsl1i 30683	. 2 ⊢ (∀𝑥 ∈ C_ℋ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨_ℋ 𝐵)) → (𝑥 ⊆ 𝐵 → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨_ℋ (𝐴 ∩ 𝐵)))) ↔ 𝐴 𝑀_ℋ 𝐵)
41	39, 40	bitr2i 275	1 ⊢ (𝐴 𝑀_ℋ 𝐵 ↔ ∀𝑥 ∈ C_ℋ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨_ℋ 𝐴) ∩ 𝐵) ⊆ (𝑥 ∨_ℋ (𝐴 ∩ 𝐵))))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ∀wral 3064 ∩ cin 3886 ⊆ wss 3887 class class class wbr 5074 (class class class)co 7275 C_ℋ cch 29291 ∨_ℋ chj 29295 𝑀_ℋ cmd 29328

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-inf2 9399 ax-cc 10191 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 ax-pre-sup 10949 ax-addf 10950 ax-mulf 10951 ax-hilex 29361 ax-hfvadd 29362 ax-hvcom 29363 ax-hvass 29364 ax-hv0cl 29365 ax-hvaddid 29366 ax-hfvmul 29367 ax-hvmulid 29368 ax-hvmulass 29369 ax-hvdistr1 29370 ax-hvdistr2 29371 ax-hvmul0 29372 ax-hfi 29441 ax-his1 29444 ax-his2 29445 ax-his3 29446 ax-his4 29447 ax-hcompl 29564

This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-iin 4927 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-se 5545 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-isom 6442 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-of 7533 df-om 7713 df-1st 7831 df-2nd 7832 df-supp 7978 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-2o 8298 df-oadd 8301 df-omul 8302 df-er 8498 df-map 8617 df-pm 8618 df-ixp 8686 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-fsupp 9129 df-fi 9170 df-sup 9201 df-inf 9202 df-oi 9269 df-card 9697 df-acn 9700 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-uz 12583 df-q 12689 df-rp 12731 df-xneg 12848 df-xadd 12849 df-xmul 12850 df-ioo 13083 df-ico 13085 df-icc 13086 df-fz 13240 df-fzo 13383 df-fl 13512 df-seq 13722 df-exp 13783 df-hash 14045 df-cj 14810 df-re 14811 df-im 14812 df-sqrt 14946 df-abs 14947 df-clim 15197 df-rlim 15198 df-sum 15398 df-struct 16848 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-mulr 16976 df-starv 16977 df-sca 16978 df-vsca 16979 df-ip 16980 df-tset 16981 df-ple 16982 df-ds 16984 df-unif 16985 df-hom 16986 df-cco 16987 df-rest 17133 df-topn 17134 df-0g 17152 df-gsum 17153 df-topgen 17154 df-pt 17155 df-prds 17158 df-xrs 17213 df-qtop 17218 df-imas 17219 df-xps 17221 df-mre 17295 df-mrc 17296 df-acs 17298 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-submnd 18431 df-mulg 18701 df-cntz 18923 df-cmn 19388 df-psmet 20589 df-xmet 20590 df-met 20591 df-bl 20592 df-mopn 20593 df-fbas 20594 df-fg 20595 df-cnfld 20598 df-top 22043 df-topon 22060 df-topsp 22082 df-bases 22096 df-cld 22170 df-ntr 22171 df-cls 22172 df-nei 22249 df-cn 22378 df-cnp 22379 df-lm 22380 df-haus 22466 df-tx 22713 df-hmeo 22906 df-fil 22997 df-fm 23089 df-flim 23090 df-flf 23091 df-xms 23473 df-ms 23474 df-tms 23475 df-cfil 24419 df-cau 24420 df-cmet 24421 df-grpo 28855 df-gid 28856 df-ginv 28857 df-gdiv 28858 df-ablo 28907 df-vc 28921 df-nv 28954 df-va 28957 df-ba 28958 df-sm 28959 df-0v 28960 df-vs 28961 df-nmcv 28962 df-ims 28963 df-dip 29063 df-ssp 29084 df-ph 29175 df-cbn 29225 df-hnorm 29330 df-hba 29331 df-hvsub 29333 df-hlim 29334 df-hcau 29335 df-sh 29569 df-ch 29583 df-oc 29614 df-ch0 29615 df-shs 29670 df-chj 29672 df-md 30642

This theorem is referenced by: mdsl2bi 30685 mdslmd1i 30691

W3C validator