Theorem bj-isvec 34591

Description: The predicate "is a vector space". (Contributed by BJ, 6-Jan-2024.)

Hypothesis

Ref	Expression
bj-isvec.scal	⊢ (𝜑 → 𝐾 = (Scalar‘𝑉))

Assertion

Ref	Expression
bj-isvec	⊢ (𝜑 → (𝑉 ∈ LVec ↔ (𝑉 ∈ LMod ∧ 𝐾 ∈ DivRing)))

Proof of Theorem bj-isvec

Step	Hyp	Ref	Expression
1		eqid 2820	. . 3 ⊢ (Scalar‘𝑉) = (Scalar‘𝑉)
2	1	islvec 19869	. 2 ⊢ (𝑉 ∈ LVec ↔ (𝑉 ∈ LMod ∧ (Scalar‘𝑉) ∈ DivRing))
3		bj-isvec.scal	. . . . 5 ⊢ (𝜑 → 𝐾 = (Scalar‘𝑉))
4	3	eqcomd 2826	. . . 4 ⊢ (𝜑 → (Scalar‘𝑉) = 𝐾)
5	4	eleq1d 2896	. . 3 ⊢ (𝜑 → ((Scalar‘𝑉) ∈ DivRing ↔ 𝐾 ∈ DivRing))
6	5	anbi2d 630	. 2 ⊢ (𝜑 → ((𝑉 ∈ LMod ∧ (Scalar‘𝑉) ∈ DivRing) ↔ (𝑉 ∈ LMod ∧ 𝐾 ∈ DivRing)))
7	2, 6	syl5bb 285	1 ⊢ (𝜑 → (𝑉 ∈ LVec ↔ (𝑉 ∈ LMod ∧ 𝐾 ∈ DivRing)))

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 398   = wceq 1536   ∈ wcel 2113  ‘cfv 6348  Scalarcsca 16561  DivRingcdr 19495  LModclmod 19627  LVecclvec 19867

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1969  ax-7 2014  ax-8 2115  ax-9 2123  ax-10 2144  ax-11 2160  ax-12 2176  ax-ext 2792

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1084  df-tru 1539  df-ex 1780  df-nf 1784  df-sb 2069  df-clab 2799  df-cleq 2813  df-clel 2892  df-nfc 2962  df-rab 3146  df-v 3493  df-dif 3932  df-un 3934  df-in 3936  df-ss 3945  df-nul 4285  df-if 4461  df-sn 4561  df-pr 4563  df-op 4567  df-uni 4832  df-br 5060  df-iota 6307  df-fv 6356  df-lvec 19868

This theorem is referenced by:  bj-rvecvec  34602