Metamath Proof Explorer


Theorem frlmfzowrd

Description: A vector of a module with indices from 0 to N - 1 is a word over the scalars of the module. (Contributed by SN, 31-Aug-2023)

Ref Expression
Hypotheses frlmfzowrd.w ⊢ W = K freeLMod 0 ..^ N
frlmfzowrd.b ⊢ B = Base W
frlmfzowrd.s ⊢ S = Base K
Assertion frlmfzowrd ⊢ X ∈ B → X ∈ Word S

Proof

Step Hyp Ref Expression
1 frlmfzowrd.w ⊢ W = K freeLMod 0 ..^ N
2 frlmfzowrd.b ⊢ B = Base W
3 frlmfzowrd.s ⊢ S = Base K
4 ovex ⊢ 0 ..^ N ∈ V
5 1 3 2 frlmbasf ⊢ 0 ..^ N ∈ V ∧ X ∈ B → X : 0 ..^ N ⟶ S
6 4 5 mpan ⊢ X ∈ B → X : 0 ..^ N ⟶ S
7 iswrdi ⊢ X : 0 ..^ N ⟶ S → X ∈ Word S
8 6 7 syl ⊢ X ∈ B → X ∈ Word S