| George Grote - 1880 - 681 páginas
...necessary for supporting it will be completed. Aristotle illustrates this by giving a demonstration **that the angles at the base of an isosceles triangle are equal** ; justifying every step in the reasoning by an appeal to some universal proposition." Again, every... | |
| William Stanley Jevons - 1881 - 340 páginas
...resemblance to inductive reasoning. When in the fifth proposition of the first book of Euclid we prove **that the angles at the base of an isosceles triangle are equal** to each other, it is done by taking one particular -triangle as an example. A figure is given which... | |
| Henry Griffith - 1882 - 171 páginas
...consequences, is a thing to be shunned and detested, is surely as obvious and infallible a truth, as **that the angles at the base of an isosceles triangle are equal.** No conceivable array of alleged or supposed proofs to the contrary,—and we may safely add, no accumulation... | |
| Marianne Nops - 1882
...understand, but to work out for ourselves the famous fifth proposition. We are required to show : .., (1) **That the angles at the base of an isosceles triangle are equal.** (2) That if the equal sides are produced the angles on the other side of the base are equal. Draw an... | |
| St. George Jackson Mivart - 1882 - 261 páginas
...observations which are essentially similar to, however superficially different from, those by which I know **that the angles at the base of an isosceles triangle are equal.** It is impossible, it seems to me, to have evidence greater than that which we have for the several... | |
| Mrs. Mortimer Collins - 1883
...black boards to lay misshapen white eggs. 'Now, young gentlemen,' says Glanville, taking snuff, ' prove **that the angles at the base of an isosceles triangle are equal.'** He motioned Algy to try first. The unfortunate youngster tried, and produced a network of nonsense... | |
| Edmund Lawrence - 1884 - 358 páginas
...reasoning from it resides. The assertion that all men are born equal has really no meaning. Euclid proves **that the angles at the base of an isosceles triangle are equal** to one another; and they are so in magnitude, which is the only attribute or quality which x an angle... | |
| Euclides - 1884
...those assigned by the examiner, and indicate the relative importance of the questions. 1875. 7. Prove **that the angles at the base of an isosceles triangle are equal** to one another. (8) 8. Prove that any two sides of a triangle are together greater than the third.... | |
| Alfred Sidgwick - 1884 - 375 páginas
...always consists in showing a valid reason why the assertion should deserve belief. So again, to prove **that the angles at the base of an isosceles triangle are equal** to one another, means to establish the truth of that proposition ; and the manner of performing the... | |
| George Croom Robertson, George Frederick Stout, George Edward Moore - 1884
...equally distant the one from the other — can never meet, let them be continued even into infinity ; or **that the angles at the base of an isosceles triangle are equal,** the one to the other ; the three angles of any triangle equal to two right angles ; the square of the... | |
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