Wiktionary
independent function
n. (context mathematics English) Any of a set of functions the value of which can not be derived from that of all the others
Usage examples of "independent function".
But if nevertheless they perform as they have been doing, then they certainly have independent function, including at least a degree of intelligence.
As her surgeon, Dr Maturin was very much part of the ship, having his own independent function and being, one no more than nominally subject to the captain.
MORNINGSTAR II COMPCONTROL CAN ONLY RETURN TO INDEPENDENT FUNCTION IF ACCESS CODE PROVIDED.
Usually babies were left to the Purgatory Playpen, because it took some time for them to achieve independent function.
Of having multiple minds capable of parallel and independent function.