Theorem diainN 42305

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 488	. . 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 42299	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑋 ∈ ran 𝐼) → (◡𝐼‘𝑋) ∈ dom 𝐼)
5	4	adantrr 730	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (◡𝐼‘𝑋) ∈ dom 𝐼)
6	2, 3	diacnvclN 42299	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑌 ∈ ran 𝐼) → (◡𝐼‘𝑌) ∈ dom 𝐼)
7	6	adantrl 729	. . 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 42304	. . 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 850	. 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 42297	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝐼:dom 𝐼⟶1-1ontoran 𝐼)
12	11	adantr 486	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝐼:dom 𝐼⟶1-1ontoran 𝐼)
13		simprl 783	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝑋 ∈ ran 𝐼)
14		f1ocnvfv2 7305	. . . 4 ⊢ ((𝐼:dom 𝐼⟶1-1ontoran 𝐼 ∧ 𝑋 ∈ ran 𝐼) → (𝐼‘(◡𝐼‘𝑋)) = 𝑋)
15	12, 13, 14	syl2anc 596	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐼‘(◡𝐼‘𝑋)) = 𝑋)
16		simprr 785	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → 𝑌 ∈ ran 𝐼)
17		f1ocnvfv2 7305	. . . 4 ⊢ ((𝐼:dom 𝐼⟶1-1ontoran 𝐼 ∧ 𝑌 ∈ ran 𝐼) → (𝐼‘(◡𝐼‘𝑌)) = 𝑌)
18	12, 16, 17	syl2anc 596	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝐼‘(◡𝐼‘𝑌)) = 𝑌)
19	15, 18	ineq12d 4121	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → ((𝐼‘(◡𝐼‘𝑋)) ∩ (𝐼‘(◡𝐼‘𝑌))) = (𝑋 ∩ 𝑌))
20	10, 19	eqtr2d 2799	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ ran 𝐼 ∧ 𝑌 ∈ ran 𝐼)) → (𝑋 ∩ 𝑌) = (𝐼‘((◡𝐼‘𝑋) ∧ (◡𝐼‘𝑌))))

This proof depends on syntax axioms:   → wi 4   ∧ wa 401   = wceq 1570   ∈ wcel 2147   ∩ cin 4092  ^◡ccnv 5654  dom cdm 5655  ran crn 5656  ⟶1-1ontowf1o 6554  ‘cfv 6555  (class class class)co 7440  meetcmee 18512  HLchlt 40598  LHypclh 41232  DIsoAcdia 42276

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735  ax-rep 5235  ax-sep 5252  ax-nul 5263  ax-pow 5331  ax-pr 5395  ax-un 7772  ax-riotaBAD 40201

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2102  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2839  df-nfc 2913  df-ne 2960  df-ral 3081  df-rex 3091  df-rmo 3369  df-reu 3370  df-rab 3417  df-v 3456  df-sbc 3743  df-csb 3852  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-pw 4562  df-sn 4589  df-pr 4591  df-op 4839  df-uni 4871  df-iun 4956  df-iin 4957  df-br 5107  df-opab 5171  df-mpt 5190  df-id 5550  df-xp 5661  df-rel 5662  df-cnv 5663  df-co 5664  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668  df-iota 6509  df-fun 6557  df-fn 6558  df-f 6559  df-f1 6560  df-fo 6561  df-f1o 6562  df-fv 6563  df-riota 7397  df-ov 7443  df-oprab 7444  df-mpo 7445  df-1st 8022  df-2nd 8023  df-undef 8315  df-map 8874  df-proset 18494  df-poset 18513  df-plt 18528  df-lub 18544  df-glb 18545  df-join 18546  df-meet 18547  df-p0 18623  df-p1 18624  df-lat 18632  df-clat 18699  df-oposet 40424  df-ol 40426  df-oml 40427  df-covers 40514  df-ats 40515  df-atl 40546  df-cvlat 40570  df-hlat 40599  df-llines 40746  df-lplanes 40747  df-lvols 40748  df-lines 40749  df-psubsp 40751  df-pmap 40752  df-padd 41044  df-lhyp 41236  df-laut 41237  df-ldil 41352  df-ltrn 41353  df-trl 41407  df-disoa 42277

This theorem is used by: (None)