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2

Some of them mistook the nature of the problem, which really is to state in the most general terms that relation of the state of things expressed in the conclusion of each inferential step to the state of things expressed in the premisses, - that relation, I say, - wherein lies the impossibility of the premisses being true without the conclusion being true.
Instead of doing this, those logicians endeavored simply to describe the phenomena of consciousmess during the reasoning.
But men who were so capable of missing the point of the problem had not the subtlety of thought that was needed even for the solution of the easier problem to which they addressed themselves.
Others who saw wha the problem really was, including most of the English logicians, failed because they attempted to penetrate beneath the forms of language to the very concepts of the mind.