Theorem diainN 41040

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 482	. . 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 41034	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑋 ∈ ran 𝐼) → (◡𝐼‘𝑋) ∈ dom 𝐼)
5	4	adantrr 717	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (◡𝐼‘𝑋) ∈ dom 𝐼)
6	2, 3	diacnvclN 41034	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑌 ∈ ran 𝐼) → (◡𝐼‘𝑌) ∈ dom 𝐼)
7	6	adantrl 716	. . 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 41039	. . 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 837	. 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 41032	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝐼:dom 𝐼–1-1-onto→ran 𝐼)
12	11	adantr 480	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝐼:dom 𝐼–1-1-onto→ran 𝐼)
13		simprl 771	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝑋 ∈ ran 𝐼)
14		f1ocnvfv2 7297	. . . 4 ⊢ ((𝐼:dom 𝐼–1-1-onto→ran 𝐼 ∧ 𝑋 ∈ ran 𝐼) → (𝐼‘(◡𝐼‘𝑋)) = 𝑋)
15	12, 13, 14	syl2anc 584	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐼‘(◡𝐼‘𝑋)) = 𝑋)
16		simprr 773	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝑌 ∈ ran 𝐼)
17		f1ocnvfv2 7297	. . . 4 ⊢ ((𝐼:dom 𝐼–1-1-onto→ran 𝐼 ∧ 𝑌 ∈ ran 𝐼) → (𝐼‘(◡𝐼‘𝑌)) = 𝑌)
18	12, 16, 17	syl2anc 584	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐼‘(◡𝐼‘𝑌)) = 𝑌)
19	15, 18	ineq12d 4229	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → ((𝐼‘(◡𝐼‘𝑋)) ∩ (𝐼‘(◡𝐼‘𝑌))) = (𝑋 ∩ 𝑌))
20	10, 19	eqtr2d 2776	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝑋 ∩ 𝑌) = (𝐼‘((◡𝐼‘𝑋) ∧ (◡𝐼‘𝑌))))

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1537   ∈ wcel 2106   ∩ cin 3962  ^◡ccnv 5688  dom cdm 5689  ran crn 5690  –1-1-onto→wf1o 6562  ‘cfv 6563  (class class class)co 7431  meetcmee 18370  HLchlt 39332  LHypclh 39967  DIsoAcdia 41011

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 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-9 2116  ax-10 2139  ax-11 2155  ax-12 2175  ax-ext 2706  ax-rep 5285  ax-sep 5302  ax-nul 5312  ax-pow 5371  ax-pr 5438  ax-un 7754  ax-riotaBAD 38935

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1540  df-fal 1550  df-ex 1777  df-nf 1781  df-sb 2063  df-mo 2538  df-eu 2567  df-clab 2713  df-cleq 2727  df-clel 2814  df-nfc 2890  df-ne 2939  df-ral 3060  df-rex 3069  df-rmo 3378  df-reu 3379  df-rab 3434  df-v 3480  df-sbc 3792  df-csb 3909  df-dif 3966  df-un 3968  df-in 3970  df-ss 3980  df-nul 4340  df-if 4532  df-pw 4607  df-sn 4632  df-pr 4634  df-op 4638  df-uni 4913  df-iun 4998  df-iin 4999  df-br 5149  df-opab 5211  df-mpt 5232  df-id 5583  df-xp 5695  df-rel 5696  df-cnv 5697  df-co 5698  df-dm 5699  df-rn 5700  df-res 5701  df-ima 5702  df-iota 6516  df-fun 6565  df-fn 6566  df-f 6567  df-f1 6568  df-fo 6569  df-f1o 6570  df-fv 6571  df-riota 7388  df-ov 7434  df-oprab 7435  df-mpo 7436  df-1st 8013  df-2nd 8014  df-undef 8297  df-map 8867  df-proset 18352  df-poset 18371  df-plt 18388  df-lub 18404  df-glb 18405  df-join 18406  df-meet 18407  df-p0 18483  df-p1 18484  df-lat 18490  df-clat 18557  df-oposet 39158  df-ol 39160  df-oml 39161  df-covers 39248  df-ats 39249  df-atl 39280  df-cvlat 39304  df-hlat 39333  df-llines 39481  df-lplanes 39482  df-lvols 39483  df-lines 39484  df-psubsp 39486  df-pmap 39487  df-padd 39779  df-lhyp 39971  df-laut 39972  df-ldil 40087  df-ltrn 40088  df-trl 40142  df-disoa 41012

This theorem is referenced by: (None)