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Theorem msrfval 32681
Description: Value of the reduct of a pre-statement. (Contributed by Mario Carneiro, 18-Jul-2016.)
Hypotheses
Ref Expression
msrfval.v 𝑉 = (mVars‘𝑇)
msrfval.p 𝑃 = (mPreSt‘𝑇)
msrfval.r 𝑅 = (mStRed‘𝑇)
Assertion
Ref Expression
msrfval 𝑅 = (𝑠𝑃(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩)
Distinct variable groups:   ,𝑎,𝑠,𝑧,𝑃   𝑇,𝑎,,𝑠   𝑧,𝑉
Allowed substitution hints:   𝑅(𝑧,,𝑠,𝑎)   𝑇(𝑧)   𝑉(,𝑠,𝑎)

Proof of Theorem msrfval
Dummy variable 𝑡 is distinct from all other variables.
StepHypRef Expression
1 msrfval.r . 2 𝑅 = (mStRed‘𝑇)
2 fveq2 6663 . . . . . 6 (𝑡 = 𝑇 → (mPreSt‘𝑡) = (mPreSt‘𝑇))
3 msrfval.p . . . . . 6 𝑃 = (mPreSt‘𝑇)
42, 3syl6eqr 2871 . . . . 5 (𝑡 = 𝑇 → (mPreSt‘𝑡) = 𝑃)
5 fveq2 6663 . . . . . . . . . . . . 13 (𝑡 = 𝑇 → (mVars‘𝑡) = (mVars‘𝑇))
6 msrfval.v . . . . . . . . . . . . 13 𝑉 = (mVars‘𝑇)
75, 6syl6eqr 2871 . . . . . . . . . . . 12 (𝑡 = 𝑇 → (mVars‘𝑡) = 𝑉)
87imaeq1d 5921 . . . . . . . . . . 11 (𝑡 = 𝑇 → ((mVars‘𝑡) “ ( ∪ {𝑎})) = (𝑉 “ ( ∪ {𝑎})))
98unieqd 4840 . . . . . . . . . 10 (𝑡 = 𝑇 ((mVars‘𝑡) “ ( ∪ {𝑎})) = (𝑉 “ ( ∪ {𝑎})))
109csbeq1d 3884 . . . . . . . . 9 (𝑡 = 𝑇 ((mVars‘𝑡) “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧) = (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧))
1110ineq2d 4186 . . . . . . . 8 (𝑡 = 𝑇 → ((1st ‘(1st𝑠)) ∩ ((mVars‘𝑡) “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)) = ((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)))
1211oteq1d 4807 . . . . . . 7 (𝑡 = 𝑇 → ⟨((1st ‘(1st𝑠)) ∩ ((mVars‘𝑡) “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩ = ⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩)
1312csbeq2dv 3887 . . . . . 6 (𝑡 = 𝑇(2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ ((mVars‘𝑡) “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩ = (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩)
1413csbeq2dv 3887 . . . . 5 (𝑡 = 𝑇(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ ((mVars‘𝑡) “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩ = (2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩)
154, 14mpteq12dv 5142 . . . 4 (𝑡 = 𝑇 → (𝑠 ∈ (mPreSt‘𝑡) ↦ (2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ ((mVars‘𝑡) “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩) = (𝑠𝑃(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩))
16 df-msr 32638 . . . 4 mStRed = (𝑡 ∈ V ↦ (𝑠 ∈ (mPreSt‘𝑡) ↦ (2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ ((mVars‘𝑡) “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩))
1715, 16, 3mptfvmpt 6981 . . 3 (𝑇 ∈ V → (mStRed‘𝑇) = (𝑠𝑃(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩))
18 mpt0 6483 . . . . 5 (𝑠 ∈ ∅ ↦ (2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩) = ∅
1918eqcomi 2827 . . . 4 ∅ = (𝑠 ∈ ∅ ↦ (2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩)
20 fvprc 6656 . . . 4 𝑇 ∈ V → (mStRed‘𝑇) = ∅)
21 fvprc 6656 . . . . . 6 𝑇 ∈ V → (mPreSt‘𝑇) = ∅)
223, 21syl5eq 2865 . . . . 5 𝑇 ∈ V → 𝑃 = ∅)
2322mpteq1d 5146 . . . 4 𝑇 ∈ V → (𝑠𝑃(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩) = (𝑠 ∈ ∅ ↦ (2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩))
2419, 20, 233eqtr4a 2879 . . 3 𝑇 ∈ V → (mStRed‘𝑇) = (𝑠𝑃(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩))
2517, 24pm2.61i 183 . 2 (mStRed‘𝑇) = (𝑠𝑃(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩)
261, 25eqtri 2841 1 𝑅 = (𝑠𝑃(2nd ‘(1st𝑠)) / (2nd𝑠) / 𝑎⟨((1st ‘(1st𝑠)) ∩ (𝑉 “ ( ∪ {𝑎})) / 𝑧(𝑧 × 𝑧)), , 𝑎⟩)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3   = wceq 1528  wcel 2105  Vcvv 3492  csb 3880  cun 3931  cin 3932  c0 4288  {csn 4557  cotp 4565   cuni 4830  cmpt 5137   × cxp 5546  cima 5551  cfv 6348  1st c1st 7676  2nd c2nd 7677  mVarscmvrs 32613  mPreStcmpst 32617  mStRedcmsr 32618
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1787  ax-4 1801  ax-5 1902  ax-6 1961  ax-7 2006  ax-8 2107  ax-9 2115  ax-10 2136  ax-11 2151  ax-12 2167  ax-ext 2790  ax-rep 5181  ax-sep 5194  ax-nul 5201  ax-pow 5257  ax-pr 5320
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 842  df-3an 1081  df-tru 1531  df-ex 1772  df-nf 1776  df-sb 2061  df-mo 2615  df-eu 2647  df-clab 2797  df-cleq 2811  df-clel 2890  df-nfc 2960  df-ne 3014  df-ral 3140  df-rex 3141  df-reu 3142  df-rab 3144  df-v 3494  df-sbc 3770  df-csb 3881  df-dif 3936  df-un 3938  df-in 3940  df-ss 3949  df-nul 4289  df-if 4464  df-sn 4558  df-pr 4560  df-op 4564  df-ot 4566  df-uni 4831  df-iun 4912  df-br 5058  df-opab 5120  df-mpt 5138  df-id 5453  df-xp 5554  df-rel 5555  df-cnv 5556  df-co 5557  df-dm 5558  df-rn 5559  df-res 5560  df-ima 5561  df-iota 6307  df-fun 6350  df-fn 6351  df-f 6352  df-f1 6353  df-fo 6354  df-f1o 6355  df-fv 6356  df-msr 32638
This theorem is referenced by:  msrval  32682  msrf  32686
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