Izumezu (Ízumezu) logic
the logic of complementarity (trivalent system)
Book •
Jonathan Chimakonam's Izumezu logic introduces a three-valued logical system incorporating truth, falsity, and a complemented third value that can be both true and false, aiming to reflect African modes of reasoning.
The system adds supplementary laws of thought, context-dependent truth evaluation, and two inferential modes, addressing perceived limitations of classical bivalent logic in capturing relational ontologies.
Izumezu has been influential in debates about formalizing African logic and offers tools for reasoning about paradox, context, and synthesis in event ontologies.
Emmanuel Ofuasia discusses, critiques, and adapts this logic in his own work on Ìwà metaphysics, modifying some laws and the application of boundary (Benocchi) points to allow synthesis in certain contexts.
The system remains a notable recent contribution to philosophical logic from Africa.
The system adds supplementary laws of thought, context-dependent truth evaluation, and two inferential modes, addressing perceived limitations of classical bivalent logic in capturing relational ontologies.
Izumezu has been influential in debates about formalizing African logic and offers tools for reasoning about paradox, context, and synthesis in event ontologies.
Emmanuel Ofuasia discusses, critiques, and adapts this logic in his own work on Ìwà metaphysics, modifying some laws and the application of boundary (Benocchi) points to allow synthesis in certain contexts.
The system remains a notable recent contribution to philosophical logic from Africa.
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Emmanuel Ofuasia
Emmanuel Ofuasia, "Ìwà: the Process-Relational Dimension to African Metaphysics" (Springer, 2024)
