Theorem dibf11N 41745

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 ∧ 𝑊 ∈ 𝐻) → 𝐼:dom 𝐼–1-1-onto→ran 𝐼)

Proof of Theorem dibf11N

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		eqid 2761	. . . 4 ⊢ (Base‘𝐾) = (Base‘𝐾)
2		eqid 2761	. . . 4 ⊢ (le‘𝐾) = (le‘𝐾)
3		dibcl.h	. . . 4 ⊢ 𝐻 = (LHyp‘𝐾)
4		dibcl.i	. . . 4 ⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)
5	1, 2, 3, 4	dibfnN 41740	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝐼 Fn {𝑥 ∈ (Base‘𝐾) ∣ 𝑥(le‘𝐾)𝑊})
6		fnfun 6615	. . . 4 ⊢ (𝐼 Fn {𝑥 ∈ (Base‘𝐾) ∣ 𝑥(le‘𝐾)𝑊} → Fun 𝐼)
7		funfn 6545	. . . 4 ⊢ (Fun 𝐼 ↔ 𝐼 Fn dom 𝐼)
8	6, 7	sylib 220	. . 3 ⊢ (𝐼 Fn {𝑥 ∈ (Base‘𝐾) ∣ 𝑥(le‘𝐾)𝑊} → 𝐼 Fn dom 𝐼)
9	5, 8	syl 17	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝐼 Fn dom 𝐼)
10		eqidd 2762	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ran 𝐼 = ran 𝐼)
11	1, 2, 3, 4	dibeldmN 41742	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → (𝑥 ∈ dom 𝐼 ↔ (𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊)))
12	1, 2, 3, 4	dibeldmN 41742	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → (𝑦 ∈ dom 𝐼 ↔ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)))
13	11, 12	anbi12d 641	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ((𝑥 ∈ dom 𝐼 ∧ 𝑦 ∈ dom 𝐼) ↔ ((𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊))))
14	1, 2, 3, 4	dib11N 41744	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)) → ((𝐼‘𝑥) = (𝐼‘𝑦) ↔ 𝑥 = 𝑦))
15	14	biimpd 231	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)) → ((𝐼‘𝑥) = (𝐼‘𝑦) → 𝑥 = 𝑦))
16	15	3expib 1134	. . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → (((𝑥 ∈ (Base‘𝐾) ∧ 𝑥(le‘𝐾)𝑊) ∧ (𝑦 ∈ (Base‘𝐾) ∧ 𝑦(le‘𝐾)𝑊)) → ((𝐼‘𝑥) = (𝐼‘𝑦) → 𝑥 = 𝑦)))
17	13, 16	sylbid 242	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ((𝑥 ∈ dom 𝐼 ∧ 𝑦 ∈ dom 𝐼) → ((𝐼‘𝑥) = (𝐼‘𝑦) → 𝑥 = 𝑦)))
18	17	ralrimivv 3202	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∀𝑥 ∈ dom 𝐼∀𝑦 ∈ dom 𝐼((𝐼‘𝑥) = (𝐼‘𝑦) → 𝑥 = 𝑦))
19		dff1o6 7253	. 2 ⊢ (𝐼:dom 𝐼–1-1-onto→ran 𝐼 ↔ (𝐼 Fn dom 𝐼 ∧ ran 𝐼 = ran 𝐼 ∧ ∀𝑥 ∈ dom 𝐼∀𝑦 ∈ dom 𝐼((𝐼‘𝑥) = (𝐼‘𝑦) → 𝑥 = 𝑦)))
20	9, 10, 18, 19	syl3anbrc 1356	1 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝐼:dom 𝐼–1-1-onto→ran 𝐼)

Syntax hints:   → wi 4   ∧ wa 399   ∧ w3a 1097   = wceq 1559   ∈ wcel 2141  ∀wral 3075  {crab 3413   class class class wbr 5097  dom cdm 5643  ran crn 5644  Fun wfun 6509   Fn wfn 6510  –1-1-onto→wf1o 6514  ‘cfv 6515  Basecbs 17235  lecple 17283  HLchlt 39934  LHypclh 40568  DIsoBcdib 41722

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-rep 5224  ax-sep 5243  ax-nul 5253  ax-pow 5319  ax-pr 5387  ax-un 7712  ax-riotaBAD 39537

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3or 1098  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-nf 1803  df-sb 2090  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3076  df-rex 3086  df-rmo 3366  df-reu 3367  df-rab 3414  df-v 3455  df-sbc 3743  df-csb 3851  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4284  df-if 4478  df-pw 4554  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4863  df-iun 4948  df-iin 4949  df-br 5098  df-opab 5160  df-mpt 5179  df-id 5538  df-xp 5649  df-rel 5650  df-cnv 5651  df-co 5652  df-dm 5653  df-rn 5654  df-res 5655  df-ima 5656  df-iota 6471  df-fun 6517  df-fn 6518  df-f 6519  df-f1 6520  df-fo 6521  df-f1o 6522  df-fv 6523  df-riota 7347  df-ov 7393  df-oprab 7394  df-mpo 7395  df-1st 7964  df-2nd 7965  df-undef 8246  df-map 8803  df-proset 18316  df-poset 18335  df-plt 18350  df-lub 18366  df-glb 18367  df-join 18368  df-meet 18369  df-p0 18445  df-p1 18446  df-lat 18454  df-clat 18521  df-oposet 39760  df-ol 39762  df-oml 39763  df-covers 39850  df-ats 39851  df-atl 39882  df-cvlat 39906  df-hlat 39935  df-llines 40082  df-lplanes 40083  df-lvols 40084  df-lines 40085  df-psubsp 40087  df-pmap 40088  df-padd 40380  df-lhyp 40572  df-laut 40573  df-ldil 40688  df-ltrn 40689  df-trl 40743  df-disoa 41613  df-dib 41723

This theorem is referenced by:  dibintclN  41751