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Theorem dibf11N 35271
Description: The partial isomorphism A for a lattice 𝐾 is a one-to-one function. Part of Lemma M of [Crawley] p. 120 line 27. (Contributed by NM, 4-Dec-2013.) (New usage is discouraged.)
Hypotheses
Ref Expression
dibcl.h 𝐻 = (LHyp‘𝐾)
dibcl.i 𝐼 = ((DIsoB‘𝐾)‘𝑊)
Assertion
Ref Expression
dibf11N ((𝐾 ∈ HL ∧ 𝑊𝐻) → 𝐼:dom 𝐼1-1-onto→ran 𝐼)

Proof of Theorem dibf11N
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2609 . . . 4 (Base‘𝐾) = (Base‘𝐾)
2 eqid 2609 . . . 4 (le‘𝐾) = (le‘𝐾)
3 dibcl.h . . . 4 𝐻 = (LHyp‘𝐾)
4 dibcl.i . . . 4 𝐼 = ((DIsoB‘𝐾)‘𝑊)
51, 2, 3, 4dibfnN 35266 . . 3 ((𝐾 ∈ HL ∧ 𝑊𝐻) → 𝐼 Fn {𝑥 ∈ (Base‘𝐾) ∣ 𝑥(le‘𝐾)𝑊})
6 fnfun 5888 . . . 4 (𝐼 Fn {𝑥 ∈ (Base‘𝐾) ∣ 𝑥(le‘𝐾)𝑊} → Fun 𝐼)
7 funfn 5819 . . . 4 (Fun 𝐼𝐼 Fn dom 𝐼)
86, 7sylib 206 . . 3 (𝐼 Fn {𝑥 ∈ (Base‘𝐾) ∣ 𝑥(le‘𝐾)𝑊} → 𝐼 Fn dom 𝐼)
95, 8syl 17 . 2 ((𝐾 ∈ HL ∧ 𝑊𝐻) → 𝐼 Fn dom 𝐼)
10 eqidd 2610 . 2 ((𝐾 ∈ HL ∧ 𝑊𝐻) → ran 𝐼 = ran 𝐼)
111, 2, 3, 4dibeldmN 35268 . . . . 5 ((𝐾 ∈ HL ∧ 𝑊𝐻) → (𝑥 ∈ dom 𝐼 ↔ (𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊)))
121, 2, 3, 4dibeldmN 35268 . . . . 5 ((𝐾 ∈ HL ∧ 𝑊𝐻) → (𝑦 ∈ dom 𝐼 ↔ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)))
1311, 12anbi12d 742 . . . 4 ((𝐾 ∈ HL ∧ 𝑊𝐻) → ((𝑥 ∈ dom 𝐼𝑦 ∈ dom 𝐼) ↔ ((𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊))))
141, 2, 3, 4dib11N 35270 . . . . . 6 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)) → ((𝐼𝑥) = (𝐼𝑦) ↔ 𝑥 = 𝑦))
1514biimpd 217 . . . . 5 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)) → ((𝐼𝑥) = (𝐼𝑦) → 𝑥 = 𝑦))
16153expib 1259 . . . 4 ((𝐾 ∈ HL ∧ 𝑊𝐻) → (((𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)) → ((𝐼𝑥) = (𝐼𝑦) → 𝑥 = 𝑦)))
1713, 16sylbid 228 . . 3 ((𝐾 ∈ HL ∧ 𝑊𝐻) → ((𝑥 ∈ dom 𝐼𝑦 ∈ dom 𝐼) → ((𝐼𝑥) = (𝐼𝑦) → 𝑥 = 𝑦)))
1817ralrimivv 2952 . 2 ((𝐾 ∈ HL ∧ 𝑊𝐻) → ∀𝑥 ∈ dom 𝐼𝑦 ∈ dom 𝐼((𝐼𝑥) = (𝐼𝑦) → 𝑥 = 𝑦))
19 dff1o6 6409 . 2 (𝐼:dom 𝐼1-1-onto→ran 𝐼 ↔ (𝐼 Fn dom 𝐼 ∧ ran 𝐼 = ran 𝐼 ∧ ∀𝑥 ∈ dom 𝐼𝑦 ∈ dom 𝐼((𝐼𝑥) = (𝐼𝑦) → 𝑥 = 𝑦)))
209, 10, 18, 19syl3anbrc 1238 1 ((𝐾 ∈ HL ∧ 𝑊𝐻) → 𝐼:dom 𝐼1-1-onto→ran 𝐼)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 382  w3a 1030   = wceq 1474  wcel 1976  wral 2895  {crab 2899   class class class wbr 4577  dom cdm 5028  ran crn 5029  Fun wfun 5784   Fn wfn 5785  1-1-ontowf1o 5789  cfv 5790  Basecbs 15641  lecple 15721  HLchlt 33458  LHypclh 34091  DIsoBcdib 35248
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1712  ax-4 1727  ax-5 1826  ax-6 1874  ax-7 1921  ax-8 1978  ax-9 1985  ax-10 2005  ax-11 2020  ax-12 2032  ax-13 2232  ax-ext 2589  ax-rep 4693  ax-sep 4703  ax-nul 4712  ax-pow 4764  ax-pr 4828  ax-un 6824  ax-riotaBAD 33060
This theorem depends on definitions:  df-bi 195  df-or 383  df-an 384  df-3or 1031  df-3an 1032  df-tru 1477  df-ex 1695  df-nf 1700  df-sb 1867  df-eu 2461  df-mo 2462  df-clab 2596  df-cleq 2602  df-clel 2605  df-nfc 2739  df-ne 2781  df-nel 2782  df-ral 2900  df-rex 2901  df-reu 2902  df-rmo 2903  df-rab 2904  df-v 3174  df-sbc 3402  df-csb 3499  df-dif 3542  df-un 3544  df-in 3546  df-ss 3553  df-nul 3874  df-if 4036  df-pw 4109  df-sn 4125  df-pr 4127  df-op 4131  df-uni 4367  df-iun 4451  df-iin 4452  df-br 4578  df-opab 4638  df-mpt 4639  df-id 4943  df-xp 5034  df-rel 5035  df-cnv 5036  df-co 5037  df-dm 5038  df-rn 5039  df-res 5040  df-ima 5041  df-iota 5754  df-fun 5792  df-fn 5793  df-f 5794  df-f1 5795  df-fo 5796  df-f1o 5797  df-fv 5798  df-riota 6489  df-ov 6530  df-oprab 6531  df-mpt2 6532  df-1st 7036  df-2nd 7037  df-undef 7263  df-map 7723  df-preset 16697  df-poset 16715  df-plt 16727  df-lub 16743  df-glb 16744  df-join 16745  df-meet 16746  df-p0 16808  df-p1 16809  df-lat 16815  df-clat 16877  df-oposet 33284  df-ol 33286  df-oml 33287  df-covers 33374  df-ats 33375  df-atl 33406  df-cvlat 33430  df-hlat 33459  df-llines 33605  df-lplanes 33606  df-lvols 33607  df-lines 33608  df-psubsp 33610  df-pmap 33611  df-padd 33903  df-lhyp 34095  df-laut 34096  df-ldil 34211  df-ltrn 34212  df-trl 34267  df-disoa 35139  df-dib 35249
This theorem is referenced by:  dibintclN  35277
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