[Frenkel 1A-1 ](obsidian://open?vault=AxlerChat&file=Solutions-Frenkel%2FFrenkel-1A-1) --- [Frenkel-1A-1](Frenkel-1A-1.md) --- [Frenkel-1A-1](Frenkel-1A-1.md) web site ![](https://www.youtube.com/watch?v=rk__T8_kVc8) ```query content:"𝛼+𝛽=𝛽+𝛼" ``` ```query content:"𝛼+𝛽 = 𝛽+𝛼" ``` ```query content:(vector addition) commutative ```