Theorem omlsi 29667

Description: Subspace form of orthomodular law in the Hilbert lattice. Compare the orthomodular law in Theorem 2(ii) of [Kalmbach] p. 22. (Contributed by NM, 14-Oct-1999.) (New usage is discouraged.)

Hypotheses

Ref	Expression
omls.1	⊢ 𝐴 ∈ Cℋ
omls.2	⊢ 𝐵 ∈ Sℋ

Assertion

Ref	Expression
omlsi	⊢ ((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ) → 𝐴 = 𝐵)

Proof of Theorem omlsi

Step	Hyp	Ref	Expression
1		eqeq1 2742	. 2 ⊢ (𝐴 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → (𝐴 = 𝐵 ↔ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) = 𝐵))
2		eqeq2 2750	. 2 ⊢ (𝐵 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) = 𝐵 ↔ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ)))
3		omls.1	. . . 4 ⊢ 𝐴 ∈ Cℋ
4		h0elch 29518	. . . 4 ⊢ 0ℋ ∈ Cℋ
5	3, 4	ifcli 4503	. . 3 ⊢ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ∈ Cℋ
6		omls.2	. . . 4 ⊢ 𝐵 ∈ Sℋ
7		h0elsh 29519	. . . 4 ⊢ 0ℋ ∈ Sℋ
8	6, 7	ifcli 4503	. . 3 ⊢ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∈ Sℋ
9		sseq1 3942	. . . . . 6 ⊢ (𝐴 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → (𝐴 ⊆ 𝐵 ↔ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 𝐵))
10		fveq2 6756	. . . . . . . 8 ⊢ (𝐴 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → (⊥‘𝐴) = (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ)))
11	10	ineq2d 4143	. . . . . . 7 ⊢ (𝐴 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → (𝐵 ∩ (⊥‘𝐴)) = (𝐵 ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))))
12	11	eqeq1d 2740	. . . . . 6 ⊢ (𝐴 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → ((𝐵 ∩ (⊥‘𝐴)) = 0ℋ ↔ (𝐵 ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ))
13	9, 12	anbi12d 630	. . . . 5 ⊢ (𝐴 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → ((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ) ↔ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ)))
14		sseq2 3943	. . . . . 6 ⊢ (𝐵 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 𝐵 ↔ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ)))
15		ineq1 4136	. . . . . . 7 ⊢ (𝐵 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → (𝐵 ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))))
16	15	eqeq1d 2740	. . . . . 6 ⊢ (𝐵 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → ((𝐵 ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ ↔ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ))
17	14, 16	anbi12d 630	. . . . 5 ⊢ (𝐵 = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → ((if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ) ↔ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∧ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ)))
18		sseq1 3942	. . . . . 6 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → (0ℋ ⊆ 0ℋ ↔ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 0ℋ))
19		fveq2 6756	. . . . . . . 8 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → (⊥‘0ℋ) = (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ)))
20	19	ineq2d 4143	. . . . . . 7 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → (0ℋ ∩ (⊥‘0ℋ)) = (0ℋ ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))))
21	20	eqeq1d 2740	. . . . . 6 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → ((0ℋ ∩ (⊥‘0ℋ)) = 0ℋ ↔ (0ℋ ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ))
22	18, 21	anbi12d 630	. . . . 5 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) → ((0ℋ ⊆ 0ℋ ∧ (0ℋ ∩ (⊥‘0ℋ)) = 0ℋ) ↔ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 0ℋ ∧ (0ℋ ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ)))
23		sseq2 3943	. . . . . 6 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 0ℋ ↔ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ)))
24		ineq1 4136	. . . . . . 7 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → (0ℋ ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))))
25	24	eqeq1d 2740	. . . . . 6 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → ((0ℋ ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ ↔ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ))
26	23, 25	anbi12d 630	. . . . 5 ⊢ (0ℋ = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) → ((if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ 0ℋ ∧ (0ℋ ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ) ↔ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∧ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ)))
27		ssid 3939	. . . . . 6 ⊢ 0ℋ ⊆ 0ℋ
28		ocin 29559	. . . . . . 7 ⊢ (0ℋ ∈ Sℋ → (0ℋ ∩ (⊥‘0ℋ)) = 0ℋ)
29	7, 28	ax-mp 5	. . . . . 6 ⊢ (0ℋ ∩ (⊥‘0ℋ)) = 0ℋ
30	27, 29	pm3.2i 470	. . . . 5 ⊢ (0ℋ ⊆ 0ℋ ∧ (0ℋ ∩ (⊥‘0ℋ)) = 0ℋ)
31	13, 17, 22, 26, 30	elimhyp2v 4522	. . . 4 ⊢ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∧ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ)
32	31	simpli 483	. . 3 ⊢ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) ⊆ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ)
33	31	simpri 485	. . 3 ⊢ (if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ) ∩ (⊥‘if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ))) = 0ℋ
34	5, 8, 32, 33	omlsii 29666	. 2 ⊢ if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐴, 0ℋ) = if((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ), 𝐵, 0ℋ)
35	1, 2, 34	dedth2v 4518	1 ⊢ ((𝐴 ⊆ 𝐵 ∧ (𝐵 ∩ (⊥‘𝐴)) = 0ℋ) → 𝐴 = 𝐵)

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1539   ∈ wcel 2108   ∩ cin 3882   ⊆ wss 3883  ifcif 4456  ‘cfv 6418   S_ℋ csh 29191   C_ℋ cch 29192  ⊥cort 29193  0_ℋc0h 29198

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-inf2 9329  ax-cc 10122  ax-cnex 10858  ax-resscn 10859  ax-1cn 10860  ax-icn 10861  ax-addcl 10862  ax-addrcl 10863  ax-mulcl 10864  ax-mulrcl 10865  ax-mulcom 10866  ax-addass 10867  ax-mulass 10868  ax-distr 10869  ax-i2m1 10870  ax-1ne0 10871  ax-1rid 10872  ax-rnegex 10873  ax-rrecex 10874  ax-cnre 10875  ax-pre-lttri 10876  ax-pre-lttrn 10877  ax-pre-ltadd 10878  ax-pre-mulgt0 10879  ax-pre-sup 10880  ax-addf 10881  ax-mulf 10882  ax-hilex 29262  ax-hfvadd 29263  ax-hvcom 29264  ax-hvass 29265  ax-hv0cl 29266  ax-hvaddid 29267  ax-hfvmul 29268  ax-hvmulid 29269  ax-hvmulass 29270  ax-hvdistr1 29271  ax-hvdistr2 29272  ax-hvmul0 29273  ax-hfi 29342  ax-his1 29345  ax-his2 29346  ax-his3 29347  ax-his4 29348  ax-hcompl 29465

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-nel 3049  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3902  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4837  df-int 4877  df-iun 4923  df-iin 4924  df-br 5071  df-opab 5133  df-mpt 5154  df-tr 5188  df-id 5480  df-eprel 5486  df-po 5494  df-so 5495  df-fr 5535  df-se 5536  df-we 5537  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-pred 6191  df-ord 6254  df-on 6255  df-lim 6256  df-suc 6257  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-isom 6427  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-om 7688  df-1st 7804  df-2nd 7805  df-frecs 8068  df-wrecs 8099  df-recs 8173  df-rdg 8212  df-1o 8267  df-oadd 8271  df-omul 8272  df-er 8456  df-map 8575  df-pm 8576  df-en 8692  df-dom 8693  df-sdom 8694  df-fin 8695  df-fi 9100  df-sup 9131  df-inf 9132  df-oi 9199  df-card 9628  df-acn 9631  df-pnf 10942  df-mnf 10943  df-xr 10944  df-ltxr 10945  df-le 10946  df-sub 11137  df-neg 11138  df-div 11563  df-nn 11904  df-2 11966  df-3 11967  df-4 11968  df-n0 12164  df-z 12250  df-uz 12512  df-q 12618  df-rp 12660  df-xneg 12777  df-xadd 12778  df-xmul 12779  df-ico 13014  df-icc 13015  df-fz 13169  df-fl 13440  df-seq 13650  df-exp 13711  df-cj 14738  df-re 14739  df-im 14740  df-sqrt 14874  df-abs 14875  df-clim 15125  df-rlim 15126  df-rest 17050  df-topgen 17071  df-psmet 20502  df-xmet 20503  df-met 20504  df-bl 20505  df-mopn 20506  df-fbas 20507  df-fg 20508  df-top 21951  df-topon 21968  df-bases 22004  df-cld 22078  df-ntr 22079  df-cls 22080  df-nei 22157  df-lm 22288  df-haus 22374  df-fil 22905  df-fm 22997  df-flim 22998  df-flf 22999  df-cfil 24324  df-cau 24325  df-cmet 24326  df-grpo 28756  df-gid 28757  df-ginv 28758  df-gdiv 28759  df-ablo 28808  df-vc 28822  df-nv 28855  df-va 28858  df-ba 28859  df-sm 28860  df-0v 28861  df-vs 28862  df-nmcv 28863  df-ims 28864  df-ssp 28985  df-ph 29076  df-cbn 29126  df-hnorm 29231  df-hba 29232  df-hvsub 29234  df-hlim 29235  df-hcau 29236  df-sh 29470  df-ch 29484  df-oc 29515  df-ch0 29516

This theorem is referenced by:  pjomli  29698