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Theorem mapdval 37431
 Description: Value of projectivity from vector space H to dual space. (Contributed by NM, 27-Jan-2015.)
Hypotheses
Ref Expression
mapdval.h 𝐻 = (LHyp‘𝐾)
mapdval.u 𝑈 = ((DVecH‘𝐾)‘𝑊)
mapdval.s 𝑆 = (LSubSp‘𝑈)
mapdval.f 𝐹 = (LFnl‘𝑈)
mapdval.l 𝐿 = (LKer‘𝑈)
mapdval.o 𝑂 = ((ocH‘𝐾)‘𝑊)
mapdval.m 𝑀 = ((mapd‘𝐾)‘𝑊)
mapdval.k (𝜑 → (𝐾𝑋𝑊𝐻))
mapdval.t (𝜑𝑇𝑆)
Assertion
Ref Expression
mapdval (𝜑 → (𝑀𝑇) = {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)})
Distinct variable groups:   𝑓,𝐾   𝑓,𝐹   𝑓,𝑊   𝑇,𝑓
Allowed substitution hints:   𝜑(𝑓)   𝑆(𝑓)   𝑈(𝑓)   𝐻(𝑓)   𝐿(𝑓)   𝑀(𝑓)   𝑂(𝑓)   𝑋(𝑓)

Proof of Theorem mapdval
Dummy variable 𝑠 is distinct from all other variables.
StepHypRef Expression
1 mapdval.k . . . 4 (𝜑 → (𝐾𝑋𝑊𝐻))
2 mapdval.h . . . . 5 𝐻 = (LHyp‘𝐾)
3 mapdval.u . . . . 5 𝑈 = ((DVecH‘𝐾)‘𝑊)
4 mapdval.s . . . . 5 𝑆 = (LSubSp‘𝑈)
5 mapdval.f . . . . 5 𝐹 = (LFnl‘𝑈)
6 mapdval.l . . . . 5 𝐿 = (LKer‘𝑈)
7 mapdval.o . . . . 5 𝑂 = ((ocH‘𝐾)‘𝑊)
8 mapdval.m . . . . 5 𝑀 = ((mapd‘𝐾)‘𝑊)
92, 3, 4, 5, 6, 7, 8mapdfval 37430 . . . 4 ((𝐾𝑋𝑊𝐻) → 𝑀 = (𝑠𝑆 ↦ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)}))
101, 9syl 17 . . 3 (𝜑𝑀 = (𝑠𝑆 ↦ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)}))
1110fveq1d 6334 . 2 (𝜑 → (𝑀𝑇) = ((𝑠𝑆 ↦ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)})‘𝑇))
12 mapdval.t . . 3 (𝜑𝑇𝑆)
13 fvex 6342 . . . . 5 (LFnl‘𝑈) ∈ V
145, 13eqeltri 2845 . . . 4 𝐹 ∈ V
1514rabex 4943 . . 3 {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)} ∈ V
16 sseq2 3774 . . . . . 6 (𝑠 = 𝑇 → ((𝑂‘(𝐿𝑓)) ⊆ 𝑠 ↔ (𝑂‘(𝐿𝑓)) ⊆ 𝑇))
1716anbi2d 606 . . . . 5 (𝑠 = 𝑇 → (((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠) ↔ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)))
1817rabbidv 3338 . . . 4 (𝑠 = 𝑇 → {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)} = {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)})
19 eqid 2770 . . . 4 (𝑠𝑆 ↦ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)}) = (𝑠𝑆 ↦ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)})
2018, 19fvmptg 6422 . . 3 ((𝑇𝑆 ∧ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)} ∈ V) → ((𝑠𝑆 ↦ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)})‘𝑇) = {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)})
2112, 15, 20sylancl 566 . 2 (𝜑 → ((𝑠𝑆 ↦ {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑠)})‘𝑇) = {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)})
2211, 21eqtrd 2804 1 (𝜑 → (𝑀𝑇) = {𝑓𝐹 ∣ ((𝑂‘(𝑂‘(𝐿𝑓))) = (𝐿𝑓) ∧ (𝑂‘(𝐿𝑓)) ⊆ 𝑇)})
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 382   = wceq 1630   ∈ wcel 2144  {crab 3064  Vcvv 3349   ⊆ wss 3721   ↦ cmpt 4861  ‘cfv 6031  LSubSpclss 19141  LFnlclfn 34859  LKerclk 34887  LHypclh 35785  DVecHcdvh 36881  ocHcoch 37150  mapdcmpd 37427 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1869  ax-4 1884  ax-5 1990  ax-6 2056  ax-7 2092  ax-9 2153  ax-10 2173  ax-11 2189  ax-12 2202  ax-13 2407  ax-ext 2750  ax-rep 4902  ax-sep 4912  ax-nul 4920  ax-pr 5034 This theorem depends on definitions:  df-bi 197  df-an 383  df-or 827  df-3an 1072  df-tru 1633  df-ex 1852  df-nf 1857  df-sb 2049  df-eu 2621  df-mo 2622  df-clab 2757  df-cleq 2763  df-clel 2766  df-nfc 2901  df-ne 2943  df-ral 3065  df-rex 3066  df-reu 3067  df-rab 3069  df-v 3351  df-sbc 3586  df-csb 3681  df-dif 3724  df-un 3726  df-in 3728  df-ss 3735  df-nul 4062  df-if 4224  df-sn 4315  df-pr 4317  df-op 4321  df-uni 4573  df-iun 4654  df-br 4785  df-opab 4845  df-mpt 4862  df-id 5157  df-xp 5255  df-rel 5256  df-cnv 5257  df-co 5258  df-dm 5259  df-rn 5260  df-res 5261  df-ima 5262  df-iota 5994  df-fun 6033  df-fn 6034  df-f 6035  df-f1 6036  df-fo 6037  df-f1o 6038  df-fv 6039  df-mapd 37428 This theorem is referenced by:  mapdvalc  37432  mapddlssN  37443  mapdsn  37444  mapd1o  37451  mapd0  37468
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