Theorem diainN 38187

Description: Inverse partial isomorphism A of an intersection. (Contributed by NM, 6-Dec-2013.) (New usage is discouraged.)

Hypotheses

Ref	Expression
diam.m	⊢ ∧ = (meet‘𝐾)
diam.h	⊢ 𝐻 = (LHyp‘𝐾)
diam.i	⊢ 𝐼 = ((DIsoA‘𝐾)‘𝑊)

Assertion

Ref	Expression
diainN	⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝑋 ∩ 𝑌) = (𝐼‘((◡𝐼‘𝑋) ∧ (◡𝐼‘𝑌))))

Proof of Theorem diainN

Step	Hyp	Ref	Expression
1		simpl 485	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
2		diam.h	. . . . 5 ⊢ 𝐻 = (LHyp‘𝐾)
3		diam.i	. . . . 5 ⊢ 𝐼 = ((DIsoA‘𝐾)‘𝑊)
4	2, 3	diacnvclN 38181	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑋 ∈ ran 𝐼) → (◡𝐼‘𝑋) ∈ dom 𝐼)
5	4	adantrr 715	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (◡𝐼‘𝑋) ∈ dom 𝐼)
6	2, 3	diacnvclN 38181	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑌 ∈ ran 𝐼) → (◡𝐼‘𝑌) ∈ dom 𝐼)
7	6	adantrl 714	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (◡𝐼‘𝑌) ∈ dom 𝐼)
8		diam.m	. . . 4 ⊢ ∧ = (meet‘𝐾)
9	8, 2, 3	diameetN 38186	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((◡𝐼‘𝑋) ∈ dom 𝐼 ∧ (◡𝐼‘𝑌) ∈ dom 𝐼)) → (𝐼‘((◡𝐼‘𝑋) ∧ (◡𝐼‘𝑌))) = ((𝐼‘(◡𝐼‘𝑋)) ∩ (𝐼‘(◡𝐼‘𝑌))))
10	1, 5, 7, 9	syl12anc 834	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐼‘((◡𝐼‘𝑋) ∧ (◡𝐼‘𝑌))) = ((𝐼‘(◡𝐼‘𝑋)) ∩ (𝐼‘(◡𝐼‘𝑌))))
11	2, 3	diaf11N 38179	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝐼:dom 𝐼–1-1-onto→ran 𝐼)
12	11	adantr 483	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝐼:dom 𝐼–1-1-onto→ran 𝐼)
13		simprl 769	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝑋 ∈ ran 𝐼)
14		f1ocnvfv2 7028	. . . 4 ⊢ ((𝐼:dom 𝐼–1-1-onto→ran 𝐼 ∧ 𝑋 ∈ ran 𝐼) → (𝐼‘(◡𝐼‘𝑋)) = 𝑋)
15	12, 13, 14	syl2anc 586	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐼‘(◡𝐼‘𝑋)) = 𝑋)
16		simprr 771	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝑌 ∈ ran 𝐼)
17		f1ocnvfv2 7028	. . . 4 ⊢ ((𝐼:dom 𝐼–1-1-onto→ran 𝐼 ∧ 𝑌 ∈ ran 𝐼) → (𝐼‘(◡𝐼‘𝑌)) = 𝑌)
18	12, 16, 17	syl2anc 586	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐼‘(◡𝐼‘𝑌)) = 𝑌)
19	15, 18	ineq12d 4189	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → ((𝐼‘(◡𝐼‘𝑋)) ∩ (𝐼‘(◡𝐼‘𝑌))) = (𝑋 ∩ 𝑌))
20	10, 19	eqtr2d 2857	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝑋 ∩ 𝑌) = (𝐼‘((◡𝐼‘𝑋) ∧ (◡𝐼‘𝑌))))

Syntax hints:   → wi 4   ∧ wa 398   = wceq 1533   ∈ wcel 2110   ∩ cin 3934  ^◡ccnv 5548  dom cdm 5549  ran crn 5550  –1-1-onto→wf1o 6348  ‘cfv 6349  (class class class)co 7150  meetcmee 17549  HLchlt 36480  LHypclh 37114  DIsoAcdia 38158

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2157  ax-12 2173  ax-ext 2793  ax-rep 5182  ax-sep 5195  ax-nul 5202  ax-pow 5258  ax-pr 5321  ax-un 7455  ax-riotaBAD 36083

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  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-rmo 3146  df-rab 3147  df-v 3496  df-sbc 3772  df-csb 3883  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-nul 4291  df-if 4467  df-pw 4540  df-sn 4561  df-pr 4563  df-op 4567  df-uni 4832  df-iun 4913  df-iin 4914  df-br 5059  df-opab 5121  df-mpt 5139  df-id 5454  df-xp 5555  df-rel 5556  df-cnv 5557  df-co 5558  df-dm 5559  df-rn 5560  df-res 5561  df-ima 5562  df-iota 6308  df-fun 6351  df-fn 6352  df-f 6353  df-f1 6354  df-fo 6355  df-f1o 6356  df-fv 6357  df-riota 7108  df-ov 7153  df-oprab 7154  df-mpo 7155  df-1st 7683  df-2nd 7684  df-undef 7933  df-map 8402  df-proset 17532  df-poset 17550  df-plt 17562  df-lub 17578  df-glb 17579  df-join 17580  df-meet 17581  df-p0 17643  df-p1 17644  df-lat 17650  df-clat 17712  df-oposet 36306  df-ol 36308  df-oml 36309  df-covers 36396  df-ats 36397  df-atl 36428  df-cvlat 36452  df-hlat 36481  df-llines 36628  df-lplanes 36629  df-lvols 36630  df-lines 36631  df-psubsp 36633  df-pmap 36634  df-padd 36926  df-lhyp 37118  df-laut 37119  df-ldil 37234  df-ltrn 37235  df-trl 37289  df-disoa 38159

This theorem is referenced by: (None)