a brief intro . . .
School of Cognitive Science,
Jadavpur University, Kolkata.
Former Professor and Head,
Department of Pure Mathematics,
University of Calcutta, Kolkata.
Theory of graded consequence
Rough set theory and its logics
Fuzzy set theory and its logics
Paraconsistent logics and mathematics
Inconsistency tolerant logics
Non-monotonic reasoning and belief change
Logic of diagrams
Many-valued logics and open worlds
Vagueness its logic and mathematics
Square of oppositions
Rationality and reasoning
Functional analysis and Topology
Fuzzy topological frame and category theory
Interplay of mathematics, art and poetry
Philosophy of mathematics