NULL SET....I tuned in too late to hear Mitt Romney's "null set" answer last night, but apparently his algebraic illiteracy is nothing compared to his ignorance of ...

In measure theory, a null set is a set that is negligible for the purposes of the measure in question. Which sets are null will depend on the measure considered. Thus one may speak of "m-null sets" ...

Neural circuits must perform computations and then selectively output the results to other circuits. Yet synapses do not change radically at millisecond timescales. A key question then is: how is ...