👉 In logic and mathematics, "untestable" refers to a statement or proposition that cannot be proven true by any means other than logical deduction. This is often seen as a limitation in the ability of one's own reasoning to verify the truthfulness of statements. For instance, if someone says "all birds can fly," it is not provable from the axioms of logic (i.e., the principles of mathematics and natural language) that all birds are capable of flying. The statement "all
