/sci/ - Science & Math

>>15069221
>Do you think they just forgot to write this? Or this there another way to prove this without using commutativity?
There is a way.
Hint: assume wlog that [math]a > b[/math] and derive a contradiction.
>>15069277
Weird example desu.
[math]
v_1 = \begin{pmatrix} 1 \\ 0 \end{pmatrix} \\
v_2 = \begin{pmatrix} 0 \\ 1 \end{pmatrix} \\
v_3 = \begin{pmatrix} 1 \\ 1 \end{pmatrix}
[/math]