What type of statement cannot be used to explain the steps of a proof?
A statement that is subjective, ambiguous, or based on opinion cannot be used to explain the steps of a proof. In a mathematical proof, each step must be based on objective facts, definitions, axioms, or previously proven theorems in order to ensure the validity and rigor of the argument. Statements that rely on personal beliefs, feelings, or interpretations are not suitable for constructing a logical proof.