[ Fuzzy logic is ] a logic whose distinguishing features are (i) fuzzy truth-values expressed in linguistic terms, e. g., true, very true, more or less true, or somewhat true, false, nor very true and not very false, etc2.; (2) imprecise truth tables; and (3) rules of inference whose validity is relative to a context rather than exact.
Lotfi A. ZadehRelated topics
context distinguishing false fuzzy inference less nor somewhat truth validity RulesRelated quotes
The White Protestant's ultimate sympathy must be with science, factology, and committee rather than with sex, birth, heat, flesh, creation, the sweet and the funky; they must vote, manipulate, control, and direct, these Protestants who are the center of power in our land, they must go for what they believe is reason when it is only the Square logic of the past.
Norman Mailer
The true function of logic ... as applied to matters of experience ... is analytic rather than constructive; taken a priori, it shows the possibility of hitherto unsuspected alternatives more often than the impossibility of alternatives which seemed prima facie possible. Thus, while it liberates imagination as to what the world may be, it refuses to legislate as to what the world is.
Bertrand Russell
There are in fact four very significant stumbling blocks in the way of grasping the truth, which hinder every man however learned, and scarcely allow anyone to win a clear title to wisdom, namely, the example of weak and unworthy authority, longstanding custom, the feeling of the ignorant crowd, and the hiding of our own ignorance while making a display of our apparent knowledge.
Roger Bacon
Undoubtedly the stories about them [hard-boiled detectives] had a fantastic element. Such things happened, but not so rapidly, nor to so close-knit a group of people, nor within so narrow a frame of logic. This was inevitable because the demand was for constant action; if you stopped to think you were lost. When in doubt, have a man come through a door with a gun in his hand.
Raymond Chandler
Talk can neither be verified nor falsified in any rigorous sense. This is an open secret which hermeneutics and aesthetics, from Aristotle to Croce, have laboured to exorcise or to conceal from themselves and their clients. This ontological, which is to say both primordial and essential axiom (or platitude) of ineradicable undecidability needs, none the less, to be closely argued.
George Steiner