Defining Truth: Correspondence, Coherence, and Utility

Alternative Definitions of Truth

A primary challenge regarding the correspondence theory of truth is avoiding a vicious circle. Truth is defined as stating what is real—that which is objective and exists in the world. However, the only path to determine what is real is through existing theories about reality.

For this reason, alternative theories have emerged:

• Truth as Coherence: This theory posits that knowledge is true if it does not contradict other established beliefs. Any statement that can be integrated into a system of beliefs without contradiction is considered true. Consistency is essential in formal sciences like mathematics, though it does not guarantee correspondence with reality in empirical sciences such as physics or chemistry.
• Truth as Usefulness: Some philosophers argue that truth is defined by utility. A belief is judged by its consequences; if it is beneficial and produces results, it is considered true; otherwise, it is false.
• Truth as Consensus: According to this theory, truth is the result of agreement among a group of people, ideally including all of humanity. In Thomas Kuhn's relativistic theory, truth is the consensus of the scientific community, which operates within social and political constraints to define an accepted paradigm.

While the correspondence theory remains the most widely accepted definition among philosophers, scientists, lawyers, and journalists, definitions based on consistency and utility serve as valuable tools to corroborate the validity of a statement.

The Importance of Truth

Truth is a fundamental concept in science, society, and interpersonal relationships.

• Seeking Justice: Judges strive to establish the truth of facts as the basis for their verdicts. If the belief that truth has multiple subjective versions were accepted, justice would become meaningless. The legal system operates on the premise that an objective truth exists and must be clarified.
• The Rule of Law: Truth is a pillar of the rule of law. Those who hold extreme or intolerable positions are often the first to discredit the truth and deny its existence.
• Scientific Research: Truth is fundamental to scientific inquiry. Without an objective and knowable world, science would be a useless utopia. Modern medicine and technology are built upon a profound understanding of reality.

While absolute truth is difficult to achieve, it remains an essential ideal that cannot be ignored.