Abstract: The aim of this presentation is to connect Extension Logic with new fields of research, i.e. Fuzzy Logic and Neutrosophic Logic.It shows herein: How Extension Logic is connected to the Three-Valued Neutrosophic Logic,How Extension Logic is connected to the Four-Valued Neutrosophic Logic,How Extension Logic is connected to the n-Valued Neutrosophic Logic,when contradictions occurs. As extension transformation one uses the normalization of the Neutrosophic Logic components.

Key words: extension logic; logic;neutrosophic logic; fuzzy logic; extenics