the fallacy of undistributed middle fallacy committed when middle term in categorical syllogism not distributed. syllogistic fallacy. more form of non sequitur.
the fallacy of undistributed middle takes following form:
it may or may not case zs bs , in either case irrelevant conclusion. relevant conclusion whether true bs zs, ignored in argument.
an example can given follows, b=mammals, y=mary , z=humans:
note if terms (z , b) swapped around in first co-premise no longer fallacy , correct.
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