"Through any three points there is at least one plane. Through any three noncollinear points there is exactly one plane."
"A plane contains at least three noncollinear points. Space contains at least four noncoplanar points."
Noncollinear: Points that do not all lie on a single line.
Noncoplanar: not occupying the same surface or linear plane
An axiom in Euclidean geometry states that in space, there are at least four points that do not lie in the same plane.