. "axioms" . "Eilenberg–Steenrod" . "Eilenberg\u2013Steenrod axioms#Formal definition" . "Eilenberg\u2013Steenrod axioms" . "Eilenberg–Steenrod axioms" . . . . "long exact sequence of the pair" . . "coefficient ring" . "Eilenberg\u2013Steenrod axioms" . .