Question

1. choose true or false. true or false: an argument that uses written justification in the form of definitions, properties, postulates and previously proved theorems and corollaries to show that a conclusion is true is a formal proof. false true

Explanation:

A formal proof in mathematics (and related fields) is defined as a logical argument that uses written justifications like definitions, properties, postulates, and previously proven theorems/corollaries to establish the truth of a conclusion. So the statement matches the definition of a formal proof.

Answer:

True