Why must truths be universal, singular, and absolute? And what makes their existence possible in a world that no longer admits transcendent guarantees?

In this companion to The Immanence of Truths, Mohammad Reza Naderi introduces the Theory of Discipline, an original philosophical framework that reconstructs Alain Badiou's late philosophy of truth from within. Rather than offering a commentary on Badiou's final major work, Naderi develops a systematic account of how truths begin, endure, and acquire the universal, singular, and absolute character that defines them.

Building on Badiou's claim that truths emerge not in philosophy itself but through the truth procedures of science, politics, art, and love, Naderi argues that philosophy's task is to think the disciplinary conditions that make these procedures possible. Naderi's Theory of Discipline provides a new conceptual architecture for understanding truth as an immanent yet enduring structure rather than an epistemic achievement or metaphysical given.

Engaging closely with The Immanence of Truths, and Badiou's wider philosophical project, Badiou and Disciplinary Truths demonstrates how recent developments in set theory illuminate the ontological conditions of truths while simultaneously extending Badiou's philosophy beyond its own explicit formulations. The result is both a rigorous guide to Badiou's late work and an original contribution to contemporary philosophy, offering a new way to think truth, ontology, and the conditions of transformative practices.