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Theorem bj-isvec 38042
Description: The predicate "is a vector space". (Contributed by BJ, 6-Jan-2024.)
Hypothesis
Ref Expression
bj-isvec.scal (𝜑𝐾 = (Scalar‘𝑉))
Assertion
Ref Expression
bj-isvec (𝜑 → (𝑉 ∈ LVec ↔ (𝑉 ∈ LMod ∧ 𝐾 ∈ DivRing)))

Proof of Theorem bj-isvec
StepHypRef Expression
1 eqid 2760 . . 3 (Scalar‘𝑉) = (Scalar‘𝑉)
21islvec 21291 . 2 (𝑉 ∈ LVec ↔ (𝑉 ∈ LMod ∧ (Scalar‘𝑉) ∈ DivRing))
3 bj-isvec.scal . . . . 5 (𝜑𝐾 = (Scalar‘𝑉))
43eqcomd 2766 . . . 4 (𝜑 → (Scalar‘𝑉) = 𝐾)
54eleq1d 2845 . . 3 (𝜑 → ((Scalar‘𝑉) ∈ DivRing ↔ 𝐾 ∈ DivRing))
65anbi2d 642 . 2 (𝜑 → ((𝑉 ∈ LMod ∧ (Scalar‘𝑉) ∈ DivRing) ↔ (𝑉 ∈ LMod ∧ 𝐾 ∈ DivRing)))
72, 6bitrid 286 1 (𝜑 → (𝑉 ∈ LVec ↔ (𝑉 ∈ LMod ∧ 𝐾 ∈ DivRing)))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wa 401   = wceq 1570  wcel 2145  cfv 6533  Scalarcsca 17348  DivRingcdr 20893  LModclmod 21047  LVecclvec 21289
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 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-ext 2732
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-sb 2100  df-clab 2739  df-cleq 2752  df-clel 2835  df-rab 3413  df-v 3452  df-dif 3902  df-un 3904  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-iota 6489  df-fv 6541  df-lvec 21290
This theorem is used by:  bj-rvecvec  38054
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