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Theorem dibvalrel 38418
 Description: The value of partial isomorphism B is a relation. (Contributed by NM, 8-Mar-2014.)
Hypotheses
Ref Expression
dibcl.h 𝐻 = (LHyp‘𝐾)
dibcl.i 𝐼 = ((DIsoB‘𝐾)‘𝑊)
Assertion
Ref Expression
dibvalrel ((𝐾𝑉𝑊𝐻) → Rel (𝐼𝑋))

Proof of Theorem dibvalrel
Dummy variable is distinct from all other variables.
StepHypRef Expression
1 relxp 5550 . . 3 Rel ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {( ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ (Base‘𝐾)))})
2 dibcl.h . . . . . . . 8 𝐻 = (LHyp‘𝐾)
3 eqid 2822 . . . . . . . 8 ((DIsoA‘𝐾)‘𝑊) = ((DIsoA‘𝐾)‘𝑊)
4 dibcl.i . . . . . . . 8 𝐼 = ((DIsoB‘𝐾)‘𝑊)
52, 3, 4dibdiadm 38410 . . . . . . 7 ((𝐾𝑉𝑊𝐻) → dom 𝐼 = dom ((DIsoA‘𝐾)‘𝑊))
65eleq2d 2899 . . . . . 6 ((𝐾𝑉𝑊𝐻) → (𝑋 ∈ dom 𝐼𝑋 ∈ dom ((DIsoA‘𝐾)‘𝑊)))
76biimpa 480 . . . . 5 (((𝐾𝑉𝑊𝐻) ∧ 𝑋 ∈ dom 𝐼) → 𝑋 ∈ dom ((DIsoA‘𝐾)‘𝑊))
8 eqid 2822 . . . . . 6 (Base‘𝐾) = (Base‘𝐾)
9 eqid 2822 . . . . . 6 ((LTrn‘𝐾)‘𝑊) = ((LTrn‘𝐾)‘𝑊)
10 eqid 2822 . . . . . 6 ( ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ (Base‘𝐾))) = ( ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ (Base‘𝐾)))
118, 2, 9, 10, 3, 4dibval 38397 . . . . 5 (((𝐾𝑉𝑊𝐻) ∧ 𝑋 ∈ dom ((DIsoA‘𝐾)‘𝑊)) → (𝐼𝑋) = ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {( ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ (Base‘𝐾)))}))
127, 11syldan 594 . . . 4 (((𝐾𝑉𝑊𝐻) ∧ 𝑋 ∈ dom 𝐼) → (𝐼𝑋) = ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {( ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ (Base‘𝐾)))}))
1312releqd 5630 . . 3 (((𝐾𝑉𝑊𝐻) ∧ 𝑋 ∈ dom 𝐼) → (Rel (𝐼𝑋) ↔ Rel ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {( ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ (Base‘𝐾)))})))
141, 13mpbiri 261 . 2 (((𝐾𝑉𝑊𝐻) ∧ 𝑋 ∈ dom 𝐼) → Rel (𝐼𝑋))
15 rel0 5649 . . . 4 Rel ∅
16 ndmfv 6682 . . . . 5 𝑋 ∈ dom 𝐼 → (𝐼𝑋) = ∅)
1716releqd 5630 . . . 4 𝑋 ∈ dom 𝐼 → (Rel (𝐼𝑋) ↔ Rel ∅))
1815, 17mpbiri 261 . . 3 𝑋 ∈ dom 𝐼 → Rel (𝐼𝑋))
1918adantl 485 . 2 (((𝐾𝑉𝑊𝐻) ∧ ¬ 𝑋 ∈ dom 𝐼) → Rel (𝐼𝑋))
2014, 19pm2.61dan 812 1 ((𝐾𝑉𝑊𝐻) → Rel (𝐼𝑋))
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 399   = wceq 1538   ∈ wcel 2114  ∅c0 4265  {csn 4539   ↦ cmpt 5122   I cid 5436   × cxp 5530  dom cdm 5532   ↾ cres 5534  Rel wrel 5537  ‘cfv 6334  Basecbs 16474  LHypclh 37239  LTrncltrn 37356  DIsoAcdia 38283  DIsoBcdib 38393 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2178  ax-ext 2794  ax-rep 5166  ax-sep 5179  ax-nul 5186  ax-pow 5243  ax-pr 5307  ax-un 7446 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2622  df-eu 2653  df-clab 2801  df-cleq 2815  df-clel 2894  df-nfc 2962  df-ne 3012  df-ral 3135  df-rex 3136  df-reu 3137  df-rab 3139  df-v 3471  df-sbc 3748  df-csb 3856  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4266  df-if 4440  df-pw 4513  df-sn 4540  df-pr 4542  df-op 4546  df-uni 4814  df-iun 4896  df-br 5043  df-opab 5105  df-mpt 5123  df-id 5437  df-xp 5538  df-rel 5539  df-cnv 5540  df-co 5541  df-dm 5542  df-rn 5543  df-res 5544  df-ima 5545  df-iota 6293  df-fun 6336  df-fn 6337  df-f 6338  df-f1 6339  df-fo 6340  df-f1o 6341  df-fv 6342  df-dib 38394 This theorem is referenced by:  dibglbN  38421  dib2dim  38498  dih2dimbALTN  38500
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