What is a postulate (axiom) in geometry?
What is a theorem in geometry?
What is a two-column proof?
What is the Reflexive Property of Equality?
What is the Transitive Property of Equality?
What is proof by contradiction (indirect proof)?
What is CPCTC?
Hint: Often the final step in a triangle congruence proof
What is the Symmetric Property of Equality?
What is a formal proof in propositional logic?
What is a direct proof?
What is indirect proof (reductio ad absurdum)?
Hint: Latin for 'reduction to absurdity.'
What is conditional proof (CP)?
In a formal proof, what must every step include besides the statement itself?
What is the rule of inference called 'Absorption'?
When using indirect proof, what do you assume at the start?
In a proof, what does it mean to 'discharge an assumption'?
What is Exportation as a rule of equivalence?
What is Transposition (also called Contraposition) as a rule of equivalence?
What is Distribution as a rule of equivalence?