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comment Applying a Function to Square Matrices
I would be interested in seeing further advances on this question. I will try to get further with the question as well.
Nov
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comment Ordered quadruples in a grid
@ChristianBlatter As far as I can see, you have reversed all the subscripts of $a$ in the step. I do not understand, however, why the step is true.
Oct
21
comment Ordered quadruples in a grid
@ChristianBlatter I am not entirely sure of the logic of this step either. Would you be able to explain?: $3(3 a_{33}-3a_{23}+a_{13})-3(3 a_{32}-3a_{22}+a_{12})+(3 a_{31}-3a_{21}+a_{11}) =3(3a_{33}-3a_{32}+a_{31})-3(3a_{23}-3a_{22}+a_{21})+(3a_{13}-3a_{12}+a_{11})$.
Oct
19
comment Ordered quadruples in a grid
@ChristianBlatter Are we using the conditions of the linear polynomial at all when doing our proof?
Oct
16
comment Limit of a continuous function
Does this mean that you are proving the statement to be iff?