Lecture 4 (Geometry) Postulates and Definitions Concerning Lines

An axiomatic system is composed of which four basic components?

1. A.Undefined terms, postulates, definitions, and theorems.
2. B.Undefined terms, axioms, conjectures, and corollaries.
3. C.Defined terms, axioms, lemmas, and proofs by contradiction.
4. D.Postulates, premises, conclusions, and inference rules.