What do you call boolean functions which are identical accurate to argument order?
EDIT1
I meant not symmetric function.
I mean, for example, implication function with truth table
00=1 01=1 10=0 11=1
and the function
00=1 01=0 10=1 11=1
i.e. giving the same if arguments exchanged.
What do you call the relation of these functions to each other?
I.e.
$$f_1(x_1,x_2,...,x_k,...,x_l,...x_n)=f_2(x_1,x_2,...,x_l,...,x_k,...x_n)$$
i.e. the positions of arguments $k$ and $l$ was exchanged, which gave different function.