Analysis of information sources in references of the Wikipedia article "Locus (mathematics)" in English language version.
The word locus is one that we still use today to denote the path followed by a point moving subject to stated constraints, although, since the introduction of set theory, a locus is more often thought of statically as the set of points satisfying a given collection.
the classical mathematicians carefully avoided introducing into their reasoning the 'actual infinity'.
set theory provides the foundations for all mathematics.