dibclN - Mathbox for Norm Megill

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Theorem dibclN 42410

Description: Closure of partial isomorphism B for a lattice 𝐾. (Contributed by NM, 8-Mar-2014.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
dibcl.h	⊢ 𝐻 = (LHyp‘𝐾)
dibcl.i	⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)

**Assertion**
Ref	Expression
dibclN	⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑋 ∈ dom 𝐼) → (𝐼‘𝑋) ∈ ran 𝐼)

**Proof of Theorem dibclN**
Step	Hyp	Ref	Expression
1		dibcl.h	. . . 4 ⊢ 𝐻 = (LHyp‘𝐾)
2		eqid 2763	. . . 4 ⊢ ((DIsoA‘𝐾)‘𝑊) = ((DIsoA‘𝐾)‘𝑊)
3		dibcl.i	. . . 4 ⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)
4	1, 2, 3	dibfna 42402	. . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝐼 Fn dom ((DIsoA‘𝐾)‘𝑊))
5		fnfun 6658	. . 3 ⊢ (𝐼 Fn dom ((DIsoA‘𝐾)‘𝑊) → Fun 𝐼)
6	4, 5	syl 18	. 2 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → Fun 𝐼)
7		fvelrn 7097	. 2 ⊢ ((Fun 𝐼 ∧ 𝑋 ∈ dom 𝐼) → (𝐼‘𝑋) ∈ ran 𝐼)
8	6, 7	sylan 592	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑋 ∈ dom 𝐼) → (𝐼‘𝑋) ∈ ran 𝐼)

Colors of variables: wff setvar class

This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 dom cdm 5655 ran crn 5656 Fun wfun 6549 Fn wfn 6550 ‘cfv 6555 HLchlt 40598 LHypclh 41232 DIsoAcdia 42276 DIsoBcdib 42386

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

This proof depends on definitions: df-bi 210 df-an 402 df-or 862 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-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-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-dib 42387

This theorem is used by: dibintclN 42415

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