| Charles Pettit McIlvaine - 1832 - 526 páginas
...certainty. In mathematical reasoning, our knowledge is greater than our ignorance. When you have proved **that the three angles of every triangle are equal to two right angles,** there is an end of doubt, because there are no materials for ignorance to work up into phantasms ;... | |
| John Mitchell Mason - 1832
...certainty. In mathematical reasoning our knowledge is greater than our ignorance. When you have proved **that the three angles of every triangle are equal to two right angles,** there is an end of doubt ; because there are no materials for ignorance to work up into phantoms ;... | |
| 1832
...grounds. There are some, of which we can say that we know them ; others, that we believe them. We know **that the three angles of every triangle are equal to two right angles.** We do not doubt that there is such a country as England, and that such a king as Henry VIII. formerly... | |
| Edward Shaw - 1832 - 140 páginas
...straight lines AF and BD, and consequently making the angle at G equal to the angle FAC ; and since **the three angles of every triangle are equal to two right angles,** and since the angles FAC, CAB, BAE, are also equal to two right angles, and since FAC is equal to the... | |
| Charles Pettit McIlvaine - 1832 - 526 páginas
...certainty. In mathematical reasoning, our knowledge is greater than our ignorance. 'When you have proved **that the three angles of every triangle are equal to two right angles,** there is an end of doubt, because there are no materials for ignorance to work up into phantasms; but... | |
| Society for the Diffusion of Christian Knowledge - 1835
...certainty. In mathematical reasoning our knowledge is greater than our ignorance. When you have proved **that the three angles of every triangle are equal to two right angles,** there is an end of doubt ; because there are no materials for ignorance to work up into phantoms; but... | |
| Christian - 1837
...certainty. In mathematical reasoning our knowledge is greater than our ignorance. "When you have proved **that the three angles of every triangle are equal to two right angles,** there is an end of doubt; because there are no materials for ignorance to work up into phantoms; but... | |
| Andrew Bell - 1837 - 240 páginas
...; any two of its opposite angles are together equal to two right angles. Join AC, BD ; and because **the three angles of every triangle are equal to two right angles** (1. 32), the three angles of the triangle CAB, namely, the angles CAB, ABC, BCA, are equal to two right... | |
| John Playfair - 1837 - 318 páginas
...triangles, the four oblique angles of which are equal to the three angles of the triangle, therefore **the three angles of every triangle are equal to two right angles.** ing the Elements. It proceeds, like that of the French Geometer, by demonstrating, in the first place,... | |
| English monthly tract society - 1838
...certainty. In mathematical reasoning our knowledge is greater than our ignorance. When you have proved **that the three angles of every triangle are equal to two right angles,** there is an end of doubt ; because there are no materials for ignorance to work up into phantoms ;... | |
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