Nicolescu’s Transdisciplinary Logic: Inclusivity and Complexity

  • Sue L. T. McGregor
doi: 10.17646/KOME.of.6


This paper recounts the two pillars of logic Basarab Nicolescu developed when he formulated the logic axiom of his transdisciplinary methodology: inclusive logic and complexity logic. The paper starts with a distinction between complexity and simplicity and frames transdisciplinary actors as a complex adaptive system (CAS). After explaining traditional classical linear logic and three laws of thought (i.e. exclusive logic) and their inability to deal with complexity, the discussion turns to both inclusive and complexity logic as understood by Nicolescu (who drew on Stéphane Lupasco, and Edgar Morin, respectively). Nicolescu knew he needed ways to both a) not exclude anything that might be integral to addressing a complex, wicked problem; and b) weave emergent ideas into something new, ways that he respectively called inclusive logic and complexity logic. Used together, richer communications and inquiry are now possible amongst diverse minds increasing chances of confidently addressing complex, normative and wicked problems.


transdisciplinarity complexity simplexity inclusive logic complexity logic, classical logic

How to Cite

Sue L. T., M. Nicolescu’s Transdisciplinary Logic: Inclusivity and Complexity. KOME, 12(1).


Al-Rodhan, N. (2021, March 29). A Neuroscientist Writes on AstraZeneca Fears. Euobserver Newsletter. Online:

Alvira, R. (2014). A Unified Complexity Theory. Comple[x]us. CreateSpace Independent Publishing Platform.

Anderson, S. (Ed.) (2014). Collins English Dictionary (12th ed.). Harper Collins.

Australian Public Service Commission (2007). Tackling Wicked Problems. A Public Policy Perspective. Online:

Blazer, D. G. (2011). Moving Beyond the Nature/Nurture Distinction: Promotion of Transdisciplinary Research. In R. Sussman & C. R. Cloninger (Eds.), Origins of Altruism and Cooperation (pp. 417–425). Springer. Online:

Bravo, A., Salazar-Torres, J., Madriz, D. & Vergel-Ortega, M. (2020). Trans-complexity: A Management Fad or a Mathematical Construct. Journal of Physics: Conference Series, 1671. Online:

Brenner, J. E. (2011). Essay: The Transdisciplinary Logic of Transdisciplinarity. Metanexus Institute. Online:

Cancel each other/one another out (2023). In Dictionary. Online:

Cantini, A. & Bruni, R. (2017). Paradoxes and Contemporary Logic. In E. N. Zalta & U. Nodelman (Eds.), Stanford Encyclopedia of Philosophy. Online:

Cilliers, P. & Nicolescu, B. (2012). Complexity and Transdisciplinarity: Discontinuity, Levels of Reality and the Hidden Third. Futures, 44(8), 711–718. Online:

Cleveland, J. (1994, March 27). Complexity Theory: Basic Concepts and Application to Systems Thinking [PDF file]. SlideShare. Online:

Dann, Z. & Barclay, I. (2006). Complexity Theory and Knowledge Management Application. Electronic Journal of Knowledge Management, 4(1), 21–30. Online:

Desbois, L. (2012). Deal with Complexity and Risk in Professional Relationship: The Transdisciplinary Logic. Transdisciplinary Journal of Engineering and Science, 3, 87–116. Online:

Dignum, F. & Weigand, H. (1995). Communication and Deontic Logic. In R. Wieringa & R. Feenstra (Eds.), Information Systems, Correctness and Reusability (pp. 242–260). World Scientific.

Editors of Encyclopedia Britannica (2020). Paradox: Literature. In Encyclopedia Britannica online. Online:

Fisher, F. (2007). On the Philosophy of Logic. Cengage Learning.

Gélalian, S. (2018). I@HoU (The Reflaction) [L’Information au coeur de l’Univers] (S. Gélalian Trans.). L’Harmattan. Online:

Hamilton, W. (1859). Lectures on Metaphysics and Logic by Sir William Hamilton Edited by Henry L. Mansel and John Veitch (Vol. 2, Logic). Gould and Lincoln. Online:

Harper, D. (2024). Online Etymology Dictionary. Online:

Head, B. W. (2008). Wicked Problems in Public Policy. Public Policy, 3(2), 101–118.

Jones, A. Z. (2019, July 3). EPR Paradox in Physics. In O. Valdes (Ed.), ThoughtCo. Online:

Landauer, J. & Rowlands, J. (2001). The Importance of Philosophy. Online:

Liang, T. Y. (2017). Complexity-intelligence Strategy. World Scientific. Online:

Luna, L. E. P. & Alfonzo, N. (2016). Conocimiento, educacion y transcomplejidad [Knowledge, Education and Transdisciplinarity] [Abstract]. Educere, 20(65), 11–20. Online:

Lupasco, S. (1951). Le principe d’antagonisme et la logique de l’énergie. Prolégomènes à une science de la contradiction [The Principle of Antagonism and the Logic of Energy: Prolegomena to a Science of Contradiction]. Hermann & Co, Paris.

Marzocca, F. (2014, October 15). Creativity, Innovation and the Included Middle Logic. Acrònico Blog. Online:

Max-Neef, M. A. (2005). Foundations of Transdisciplinarity. Ecological Economics, 53(1), 5–16. Online:

McGregor, S. L. T. (2011). Demystifying Transdisciplinary Ontology: Multiple Levels of Reality and the Hidden Third. Integral Leadership Review, 11(2). Online:

McGregor, S. L. T. (2017). Challenges to Transdisciplinary Collaboration: A Conceptual Literature Review. Integral Leadership Review, 17(1). Online:

McGregor, S. L. T. (2018a). Philosophical Underpinnings of the Transdisciplinary Research Methodology. Transdisciplinary Journal of Engineering & Science, 9, 182–198. Online:

McGregor, S. L. T. (2018b). Understanding and Evaluating Research. Sage. Online:

McGregor, S. L. T. (2019). Transdisciplinary Curriculum: Educational Philosophy and Rationale. Integral Leadership Review, 19(1). Online:

McGregor, S. L. T. (2020a). Chapter 3 Sue L. T. McGregor. In P. Gibbs & A. Beavis (Eds.), Contemporary Thinking on Transdisciplinary Knowledge (pp.19–24). Springer. Online:

McGregor, S. L. T. (2020b). Emerging from the Deep: Complexity, Emergent Pedagogy and Deep Learning. Northwest Journal of Complex Systems, 2(1). Online:

McGregor, S. L. T. (2020c). Transdisciplinary Logics of Complexity. Integral Leadership Review, 20(1). Online:

McGregor, S. L. T. & Gibbs, P. (2020). Being in the Hidden Third: Insights into Transdisciplinary Ontology. Transdisciplinary Journal of Engineering and Science, 11, 142–157. Online:

Mihalache, A. (2002). The Cyberspace Time Continuum: Meaning and Metaphor. Information Society, 18(4), 293–301. Online:

Morin, E. (1974). Complexity. International Social Science Journal, 26(4), 555–582. Online:

Morin, E. (1984). On the Definition of Complexity. In S. Aida (Ed.), The Science and Praxis of Complexity (pp. 62–68). United Nations University.

Morin, E. (2005, June 26). Restricted Complexity, General Complexity [C. Gerhenson, Trans.] [Paper presentation]. Colloquium Intelligence de la complexité: Épistemologie et pragmatique, Cerisy-La-Salle, France. Online:

Morin, E. (2008). On Complexity. Hampton Press.

NASA Science Casts (2015, December 31). Quantum Foam [Video]. NASA Science. Online:

Nicolescu, B. (1985). Nous, la particule et le monde. Le Mail.

Nicolescu, B. (1994). The Charter of Transdisciplinarity. In G. Tanzella-Nitti (Ed.), Interdisciplinary Encyclopedia of Religion and Science. Interdisciplinary Documentation on Religion and Science. Online:

Nicolescu, B. (2000). Transdisciplinarity and Complexity: Levels of Reality as Source of Indeterminacy. CIRET Bulletin, 15. Online:

Nicolescu, B. (2002). Manifesto of Transdisciplinarity. SUNY Press.

Nicolescu, B. (2005, September 6–12). Transdisciplinarity: Past, Present and Future [Paper presentation]. Second World Congress on Transdisciplinarity, Victoria, Brazil. Online:

Nicolescu, B. (2007). Transdisciplinarity: Basarab Nicolescu talks with Russ Volckmann. Integral Review, 4, 73–90. Online:

Nicolescu, B. (2009). Qu’est-ce que la réalité?: Réflexions autour de Stéphane Lupasco [What Is Reality? Reflections on Stéphane Lupasco]. Liber.

Nicolescu, B. (2010, June 16–9). Disciplinary Boundaries. What Are They and How They Can Be Transgressed? [Paper presentation]. International Symposium on Research Across Boundaries, University of Luxembourg. Online:

Nicolescu, B. (2014). From Modernity to Cosmodernity. SUNY Press.

Nicolescu, B. (2016). The Hidden Third [W. Garvin, Trans.]. Quantum Prose.

Priest, G. & Tanaka, K. (2022). Paraconsistent Logic. In E. N. Zalta & U. Nodelman (Eds.), Stanford Encyclopedia Of Philosophy. Online:

Preiser, R. (2012). The Problem of Complexity. Re-Thinking the Role of Critique (Doctoral dissertation), Stellenbosch University. Online:

Rittel, H. & Webber, M. (1973). Dilemmas in a General Theory of Planning. Policy Sciences, 4, 155–169. Online:

Rohmann, C. (1999). A World of Ideas. Ballantine Books.

Rouse, M. (Ed.) (2020). Superposition. In Dictionary. Online:

Russell, B. (1912). The Problems of Philosophy. Oxford University Press.

Schrödinger, E. (1935). Die gegenwärtige situation in der quantenmechanik [The Present Situation in Quantum Mechanics]. Naturwissenschaften, 23(48), 807–812. Online:

SimplexCT (2013, December 26). Simplexity is the process by which nature strives towards simple ends by complex means. – Bruce Schiff [Tweet]. X (formerly Twitter). Online:

Smith, R. (2017). Aristotle’s Logic. In E. N. Zalta & U. Nodelman (Eds.), Stanford Encyclopedia of Philosophy. Online:

Stevenson, A. (Ed.). (2011). Concise Oxford English Dictionary (12th ed.). Oxford University Press.

Stuart, G. (2018, February 23). What Are Complex Problems? Sustaining Community Blog. Online:

Wang, Y., Han, X. & Yang, J. (2015). Revisiting the Blended Learning Literature: Using a Complex Adaptive Systems Framework. Journal of Educational Technology & Society, 18(2), 380–393. Online:

Wilczek, F. (2010, March 4). The J. Robert Oppenheimer Lecture: Anticipating a New Golden Age [Video]. YouTube. Online:

Wilensky, G. (n.d.-a). The Crucial Role of Logic in Everyday Life. Thought Academy Blog. Online:

Wilensky, G. (n.d.-b). The Importance of Logic in Effective Communication. Thought Academy Blog. Online: