Experience—events which have taken place within a person's own knowledge.—Whately.
Fallacy—an apparent argument.
General Terms—express the notion of partial similarity.
Generalisation—tracing certain points of resemblance.—naming one respect in which many things agree.
Induction—universalisation of truth by inference from uniform facts.
Intuition—imaginary looking.—Whewell,
Logic—a scientific use of facts.
Logical Truth—that which admits of proof.—Chambers.
Mind—the unknown percipient of sensation.—J. S. Mill.
Necessary Truths—are those in which we not only learn that the proposition is true, but see that it must be true; in which the negative of the truth is not only false, but impossible; in which we cannot, even by an effort of the imagination, or in a supposition, conceive the reverse of that which is asserted.—Dr. Whewell: Phil. Inductive Sciences, pp. 54-5, vol. 1.*