Metamath Proof Explorer


Theorem ttgvscaOLD

Description: Obsolete proof of ttgvsca as of 29-Oct-2024. The scalar product of a subcomplex Hilbert space augmented with betweenness. (Contributed by Thierry Arnoux, 25-Mar-2019) (Proof modification is discouraged.) (New usage is discouraged.)

Ref Expression
Hypotheses ttgval.n G = to𝒢 Tarski H
ttgvsca.1 · ˙ = H
Assertion ttgvscaOLD · ˙ = G

Proof

Step Hyp Ref Expression
1 ttgval.n G = to𝒢 Tarski H
2 ttgvsca.1 · ˙ = H
3 df-vsca 𝑠 = Slot 6
4 6nn 6
5 1nn 1
6 6nn0 6 0
7 6lt10 6 < 10
8 5 6 6 7 declti 6 < 16
9 1 3 4 8 ttglemOLD H = G
10 2 9 eqtri · ˙ = G