1st Edition

A Social Ontology of Psychosis Genea-logical Treatise on Lacan’s Conception of Psychosis

By Diego Enrique Londoño-Paredes Copyright 2025
    200 Pages 3 B/W Illustrations
    by Routledge

    200 Pages 3 B/W Illustrations
    by Routledge

    In A Social Ontology of Psychosis, Diego Enrique Londoño-Paredes explores how to interpret and apply the concept of the signifier of the Name-of-the-Father in Lacanian theory, particularly in the context of working with psychosis.

    Londoño proposes a logical framework drawing on the work of Badiou, then traces the historical development of this concept and its implications as a structural necessity for anyone who speaks and engages in discourse. The book opens by exploring set theory, transitioning from nought to one, from the Thing to the object, essential for any presentation. Subsequently, it follows a historical path, examining the evolution of the figure and the signifier of the Father, journeying from ancient Mesopotamian roots through Modernity, touching upon Claudel’s theater and the films of the Coen brothers. Finally, it aligns Searle’s social ontology with Lacan’s discourses, highlighting psychosis as an illustration of being outside discourse, particularly when the Name-of-the-Father is foreclosed. Case material illustrates various ways psychosis manifests without distinct clinical evidence.

    This comprehensive book will be of great interest to practitioners and scholars in psychoanalysis, philosophy, the humanities, and the history of mental health and knowledge.

    Part 1: The Logical Dissertation: The Zero Symbolic Value of the Name-of-the-Father  1. Nought as a non-identical identity and the empty set {ø}: Inferring the Thing  2. The inconsistency of the Language set and the divided subject  3. Negation and name: founders of the subject  4. Language, the zero-value signifier, and the signifier of the lack in the Other, S(Ⱥ)  5. Castration and the “extraction of object a”, the offshoots of the Oedipus complex  Part 2: A Genealogy of the Father and the Death of the Father: A Quest through Jouissance and Modernity  6. The Patriarchy and Monotheism: An “all”-mighty God  7. God of Vengeance and Jouissance: A God that is “not-all”  8. Is Modernity a Precursor of Psychosis?  9. From the conjugal family to the NotF: A look at a misguided conception of the family  10. Depicting the Father in Modernity and Postmodernity: The theatre of Claudel and the cinema of the Coen brothers  Part 3: A Socio-ontological Appraisal of Psychosis  11. Declarations and discourse, or the intervention of Language in the founding of eventfulness and the subject-position  12. The Outside-discourse of psychosis: A bet on subjectivization and the fundamental fantasy  13. Dealing with psychosis and discourse: A case study


    Diego Enrique Londoño-Paredes is a psychoanalyst and clinical psychologist from the Université Rennes 2, France, where he received his doctorate in psychology. He has been a professor at several psychology departments and is currently a member of the psychoanalytic association Analítica and Professor at the Universidad Nacional de Colombia and Universidad Manuela Beltrán.

    “This exceptionally rich book explores the multifaceted role and significance of the father in Lacan’s work. Diego Londoño seamlessly connects logical formulations with socio-cultural reflections and clinical considerations, making this book not only a comprehensive discussion of Lacan’s work but also a reference on how to apply it in contemporary practice.”

    Stijn Vanheule, Ghent University

    “In A Social Ontology of Psychosis, Londoño provides a logical and genealogical account of the function and place of the father in civilization through a careful analysis of the various versions of the father in psychoanalytic theory as developed by Sigmund Freud and Jacques Lacan. His logico-genealogical reading of Lacan’s theory of the Name-of-the-Father provides a contemporary commentary on psychotic subjectivity in civilization in both pathological and non-pathological forms. Moreover, in developing Lacan’s theory of the Name-of-the-Father in relation to logic, set theory, the big Other, language and myth he provides an intriguing response to what may have occurred in Lacan’s 1963 abandoned seminar, The Names of the Father.”

    Jonathan Redmond, author, Ordinary Psychosis and the Body