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" IF the first be to the second as the third to the fourth, and if the first be a multiple, or part of the second; the third is the same multiple, or the same part of the fourth... "
An Elementary Treatise on Algebra, Theoretical and Practical ... - Σελίδα 345
των James Ryan, Robert Adrain - 1835 - 361 σελίδες
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The First Six, and the Eleventh and Twelfth Books of Euclid's Elements: With ...

Euclid, James Thomson - 1845 - 382 σελίδες
...: A : : D : C ; and inversely (V. B) A : B : : C : D. If, therefore, &c. ABC i' PROP. D. THEOB.— If the first be to the second as the third to the fourth, and if the first be a multiple, or a part of the second ; the third is the same multiple, or part of the fourth. Let A : B : : C : D;...

Euclid in Paragraphs: The Elements of Euclid: Containing the First Six Books ...

Euclid - 1845 - 218 σελίδες
...taken separately, be proportionals, they shall also be proportionals when taken jointly ; that is, if the first be to the second, as the third to the fourth, the first and second together shall be to the second, as the third and fourth together to the fourth....

Euclid's Elements of geometry [book 1-6, 11,12] with explanatory notes ...

Euclides - 1845 - 546 σελίδες
...(v. B.) Therefore, if the first be the same multiple, &c. QED PROPOSITION D. THEOREM. //' the Jlrsl be to the second as the third to the fourth, and if tJic Jirst be a multiple, or a part of the second ; the third is the same multiple, or the same part...

Euclid's Elements: Or, Second Lessons in Geometry,in the Order of Simson's ...

Dennis M'Curdy - 1846 - 166 σελίδες
...hypothesis ; (b) p. 3, 5 ; (c) def. 5, 5 ; (d) p. B, 5. D Th. If the first be to the second as the third is to the fourth, and if the first be a multiple or part of the second, the third is the same multiple or part of the fourth. Let A, B, C, D be four magnitudes, in order; so that A is to B as C is to D. First,...

The Elements of Euclid, the parts read in the University of Cambridge [book ...

Euclides - 1846 - 292 σελίδες
...taken separately, be proportionals, tItey shall also be proportionals when taken jointly : that is, if the first be to the second, as the third to the fourth, the first and second together shall be to the second, as the third and fourth together to the fourth....

Elements of Geometry: Containing the First Six Books of Euclid, with a ...

Euclid, John Playfair - 1846 - 334 σελίδες
...magnitudes, taken separately, be proportionals, they will also be proportionals when taken jointly, that is, if the first be to the second as the third to the fourth, the first and second together will be to the second as the third and fourth together to the fourth....

The definitions, postulates, axioms, and enunciations of the propositions of ...

Euclides - 1848 - 52 σελίδες
...magnitudes, taken separately, be proportionals, they shall also be proportionals when taken jointly; that is, if the first be to the second, as the third to the fourth, the first and second together shall be to the second, as the third and fourth together to the fourth....

University of Durham

University of Durham - 1851 - 222 σελίδες
...To describe an isosceles triangle having each angle at the base double the angle at the vertex. 1 2. If the first be to the second as the third to the fourth, and if the first be a multiple or a part of the second, the third is the same multiple or part of the fourth. 13. Give Euclid's definition...

The geometry, by T. S. Davies. Conic sections, by Stephen Fenwick

Royal Military Academy, Woolwich - 1853 - 400 σελίδες
...taken separately, be proportionals, they shall ^ also be proportionals when taken jointly ; that is, if the first be to the second as the third to the fourth, the first and second together shall be to the second as the third and fourth together to the fourth....

The first six books of the Elements of Euclid, with numerous exercises

Euclides - 1853 - 176 σελίδες
...taken separately, be proportionals, they shall also bе proportionals when taken jointly, that is, if the first be to the second as the third to the fourth, the first and second together shall be to the second as the third and fourth together to the fourth....




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