Theorem lmodvscld 41104

Description: Closure of scalar product for a left module. (Contributed by SN, 15-Mar-2025.)

Hypotheses

Ref	Expression
lmodvscld.v	⊢ 𝑉 = (Base‘𝑊)
lmodvscld.f	⊢ 𝐹 = (Scalar‘𝑊)
lmodvscld.s	⊢ · = ( ·𝑠 ‘𝑊)
lmodvscld.k	⊢ 𝐾 = (Base‘𝐹)
lmodvscld.w	⊢ (𝜑 → 𝑊 ∈ LMod)
lmodvscld.r	⊢ (𝜑 → 𝑅 ∈ 𝐾)
lmodvscld.x	⊢ (𝜑 → 𝑋 ∈ 𝑉)

Assertion

Ref	Expression
lmodvscld	⊢ (𝜑 → (𝑅 · 𝑋) ∈ 𝑉)

Proof of Theorem lmodvscld

Step	Hyp	Ref	Expression
1		lmodvscld.w	. 2 ⊢ (𝜑 → 𝑊 ∈ LMod)
2		lmodvscld.r	. 2 ⊢ (𝜑 → 𝑅 ∈ 𝐾)
3		lmodvscld.x	. 2 ⊢ (𝜑 → 𝑋 ∈ 𝑉)
4		lmodvscld.v	. . 3 ⊢ 𝑉 = (Base‘𝑊)
5		lmodvscld.f	. . 3 ⊢ 𝐹 = (Scalar‘𝑊)
6		lmodvscld.s	. . 3 ⊢ · = ( ·𝑠 ‘𝑊)
7		lmodvscld.k	. . 3 ⊢ 𝐾 = (Base‘𝐹)
8	4, 5, 6, 7	lmodvscl 20489	. 2 ⊢ ((𝑊 ∈ LMod ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉) → (𝑅 · 𝑋) ∈ 𝑉)
9	1, 2, 3, 8	syl3anc 1372	1 ⊢ (𝜑 → (𝑅 · 𝑋) ∈ 𝑉)

Syntax hints:   → wi 4   = wceq 1542   ∈ wcel 2107  ‘cfv 6544  (class class class)co 7409  Basecbs 17144  Scalarcsca 17200   ·_𝑠 cvsca 17201  LModclmod 20471

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-ext 2704  ax-nul 5307

This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-sb 2069  df-clab 2711  df-cleq 2725  df-clel 2811  df-ne 2942  df-ral 3063  df-rab 3434  df-v 3477  df-sbc 3779  df-dif 3952  df-un 3954  df-in 3956  df-ss 3966  df-nul 4324  df-if 4530  df-sn 4630  df-pr 4632  df-op 4636  df-uni 4910  df-br 5150  df-iota 6496  df-fv 6552  df-ov 7412  df-lmod 20473

This theorem is referenced by:  frlmsnic  41110  selvvvval  41157  prjspvs  41352  prjspeclsp  41354