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Theorem mtyf2 36051
Description: The type function maps variables to typecodes. (Contributed by Mario Carneiro, 18-Jul-2016.)
Hypotheses
Ref Expression
mtyf2.v 𝑉 = (mVR‘𝑇)
mvtf2.k 𝐾 = (mTC‘𝑇)
mtyf2.y 𝑌 = (mType‘𝑇)
Assertion
Ref Expression
mtyf2 (𝑇 ∈ mFS → 𝑌:𝑉𝐾)

Proof of Theorem mtyf2
Dummy variable 𝑣 is distinct from all other variables.
StepHypRef Expression
1 eqid 2763 . . . 4 (mCN‘𝑇) = (mCN‘𝑇)
2 mtyf2.v . . . 4 𝑉 = (mVR‘𝑇)
3 mtyf2.y . . . 4 𝑌 = (mType‘𝑇)
4 eqid 2763 . . . 4 (mVT‘𝑇) = (mVT‘𝑇)
5 mvtf2.k . . . 4 𝐾 = (mTC‘𝑇)
6 eqid 2763 . . . 4 (mAx‘𝑇) = (mAx‘𝑇)
7 eqid 2763 . . . 4 (mStat‘𝑇) = (mStat‘𝑇)
81, 2, 3, 4, 5, 6, 7ismfs 36049 . . 3 (𝑇 ∈ mFS → (𝑇 ∈ mFS ↔ ((((mCN‘𝑇) ∩ 𝑉) = ∅ ∧ 𝑌:𝑉𝐾) ∧ ((mAx‘𝑇) ⊆ (mStat‘𝑇) ∧ ∀𝑣 ∈ (mVT‘𝑇) ¬ (𝑌 “ {𝑣}) ∈ Fin))))
98ibi 270 . 2 (𝑇 ∈ mFS → ((((mCN‘𝑇) ∩ 𝑉) = ∅ ∧ 𝑌:𝑉𝐾) ∧ ((mAx‘𝑇) ⊆ (mStat‘𝑇) ∧ ∀𝑣 ∈ (mVT‘𝑇) ¬ (𝑌 “ {𝑣}) ∈ Fin)))
109simplrd 781 1 (𝑇 ∈ mFS → 𝑌:𝑉𝐾)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  ¬ wn 3  wi 4  wa 400   = wceq 1570  wcel 2143  wral 3079  cin 3904  wss 3905  c0 4286  {csn 4589  ccnv 5660  cima 5664  wf 6532  cfv 6536  Fincfn 8939  mCNcmcn 35960  mVRcmvar 35961  mTypecmty 35962  mVTcmvt 35963  mTCcmtc 35964  mAxcmax 35965  mStatcmsta 35975  mFScmfs 35976
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-ext 2735
This proof depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-sb 2097  df-clab 2742  df-cleq 2755  df-clel 2838  df-ral 3080  df-rab 3417  df-v 3457  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-br 5110  df-opab 5174  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-res 5673  df-ima 5674  df-iota 6492  df-fun 6538  df-fn 6539  df-f 6540  df-fv 6544  df-mfs 35996
This theorem is used by:  mtyf  36052  mvtss  36053  msubff1  36056  mvhf  36058  msubvrs  36060
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