Theorem dibval3N 38276

Description: Value of the partial isomorphism B for a lattice 𝐾. (Contributed by NM, 24-Feb-2014.) (New usage is discouraged.)

Hypotheses

Ref	Expression
dibval3.b	⊢ 𝐵 = (Base‘𝐾)
dibval3.l	⊢ ≤ = (le‘𝐾)
dibval3.h	⊢ 𝐻 = (LHyp‘𝐾)
dibval3.t	⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
dibval3.r	⊢ 𝑅 = ((trL‘𝐾)‘𝑊)
dibval3.o	⊢ 0 = (𝑔 ∈ 𝑇 ↦ ( I ↾ 𝐵))
dibval3.i	⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)

Assertion

Ref	Expression
dibval3N	⊢ (((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) → (𝐼‘𝑋) = ({𝑓 ∈ 𝑇 ∣ (𝑅‘𝑓) ≤ 𝑋} × { 0 }))

Distinct variable groups:   𝑓,𝐾   𝑔,𝐾   𝑇,𝑓   𝑓,𝑊   𝑔,𝑊   𝑓,𝑋

Allowed substitution hints:   𝐵(𝑓,𝑔)   𝑅(𝑓,𝑔)   𝑇(𝑔)   𝐻(𝑓,𝑔)   𝐼(𝑓,𝑔)   ≤ (𝑓,𝑔)   𝑉(𝑓,𝑔)   𝑋(𝑔)   0 (𝑓,𝑔)

Proof of Theorem dibval3N

Step	Hyp	Ref	Expression
1		dibval3.b	. . 3 ⊢ 𝐵 = (Base‘𝐾)
2		dibval3.l	. . 3 ⊢ ≤ = (le‘𝐾)
3		dibval3.h	. . 3 ⊢ 𝐻 = (LHyp‘𝐾)
4		dibval3.t	. . 3 ⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
5		dibval3.o	. . 3 ⊢ 0 = (𝑔 ∈ 𝑇 ↦ ( I ↾ 𝐵))
6		eqid 2821	. . 3 ⊢ ((DIsoA‘𝐾)‘𝑊) = ((DIsoA‘𝐾)‘𝑊)
7		dibval3.i	. . 3 ⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)
8	1, 2, 3, 4, 5, 6, 7	dibval2 38274	. 2 ⊢ (((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) → (𝐼‘𝑋) = ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × { 0 }))
9		dibval3.r	. . . 4 ⊢ 𝑅 = ((trL‘𝐾)‘𝑊)
10	1, 2, 3, 4, 9, 6	diaval 38162	. . 3 ⊢ (((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) → (((DIsoA‘𝐾)‘𝑊)‘𝑋) = {𝑓 ∈ 𝑇 ∣ (𝑅‘𝑓) ≤ 𝑋})
11	10	xpeq1d 5579	. 2 ⊢ (((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) → ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × { 0 }) = ({𝑓 ∈ 𝑇 ∣ (𝑅‘𝑓) ≤ 𝑋} × { 0 }))
12	8, 11	eqtrd 2856	1 ⊢ (((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) → (𝐼‘𝑋) = ({𝑓 ∈ 𝑇 ∣ (𝑅‘𝑓) ≤ 𝑋} × { 0 }))

Syntax hints:   → wi 4   ∧ wa 398   = wceq 1533   ∈ wcel 2110  {crab 3142  {csn 4561   class class class wbr 5059   ↦ cmpt 5139   I cid 5454   × cxp 5548   ↾ cres 5552  ‘cfv 6350  Basecbs 16477  lecple 16566  LHypclh 37114  LTrncltrn 37231  trLctrl 37288  DIsoAcdia 38158  DIsoBcdib 38268

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-rep 5183  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322  ax-un 7455

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3497  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4833  df-iun 4914  df-br 5060  df-opab 5122  df-mpt 5140  df-id 5455  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-disoa 38159  df-dib 38269

This theorem is referenced by: (None)