The Logic and Utility of Mathematics: With the Best Methods of Instruction Explained and IllustratedA.S. Barnes & Company, 1850 - 375 σελίδες |
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Συχνά εμφανιζόμενοι όροι και φράσεις
abstract Algebra algebraic quantity analysis Analytical Geometry applicable apprehended argument arithmetic axioms basis bers branch called combinations common compared conclusion connection copula Croton aqueduct curved deductive deductive reasoning defined definition denominate numbers Descriptive Geometry divided division elementary employed ence equal equation eral example explained expressed facts feet figures frac fractional units geometrical magnitudes gism Hence ical idea Induction inferred integer integer units Integral Calculus kind knowledge known language laws learner length logic mathematical science means method metic middle term mind multiplied Natural Philosophy nature operations plane practical predicate premises principles properties proportion proposition pupil quantity quotient ratio reasoning regarded relation right angles scale of tens sensible objects sides signification solid square straight line subtraction surface syllogism symbols things tion triangle Troy Weight true truths unit of measure unity whole words yard
Δημοφιλή αποσπάσματα
Σελίδα 305 - In the mathematics I can report no deficience, except it be that men do not sufficiently understand the excellent use of the pure mathematics, in that they do remedy and cure many defects in the wit and faculties intellectual. For if the wit be too dull, they sharpen it ; if too wandering, they fix it; if too inherent in the sense, they abstract it.
Σελίδα 235 - The square described on the hypothenuse of a right-angled triangle is equivalent to the sum of the squares described on the other two sides.
Σελίδα 50 - Induction, then, is that operation of the mind, by which we infer that what we know to be true in a particular case or cases, will be true in all cases which resemble the former in certain assignable respects. In other words, Induction is the process by which we conclude that what is true of certain individuals of a class is true of the whole class, or that what is true at certain times will be true in similar circumstances at all times.
Σελίδα 1 - MATHEMATICS. The Logic and Utility of Mathematics, with the best Methods of Instruction, explained and illustrated.
Σελίδα 243 - AD c, have two sides, and the included angle of the one equal to two sides and the included angle of the other, each \ to each, and are equal in all their parts...
Σελίδα 60 - IN every instance in which we reason, in the strict sense of the word, ie make use of arguments, whether for the sake of refuting an adversary, or of conveying instruction, or of satisfying our own minds on any point, whatever may be the subject we are engaged on, a certain process takes place in the mind, which is one and the same in all cases, provided it be correctly conducted.
Σελίδα 73 - ... whatever is predicated (ie affirmed or denied) universally, of any class of things, may be predicated, in like manner, (viz. affirmed or denied) of any thing comprehended in that class.