Involutive monoidal t‐norm based logic and R0 logic

We investigate the relations between involutive monoidal t‐norm–based logics (IMTL) and R₀ logics. The main results are as follows: the logic IMTL and weak R₀ logic are equivalent; nilpotent minimum logic and R₀ logic are equivalent. © 2004 Wiley Periodicals, Inc.