A fuzzy inference system 1, wherein {HEAD ~ said fuzzy inference unit} comprises at least two sets of said membership function generation circuit, switching means and {TAIL ~ membership function observing terminal} 
A fuzzy inference system 1 , wherein { HEAD ~ said fuzzy inference unit } comprises at least two sets of said membership function generation circuit , switching means and { TAIL ~ membership function observing terminal }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL