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" When you have proved that the three angles of every triangle are equal to two right angles... "
The Elements of Euclid: With Dissertations Intended to Assist and Encourage ... - Seite 86
von Euclid, James Williamson - 1781 - 309 Seiten
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Hermathena, Band 5

1885 - 480 Seiten
...isosceles, and lastly in the scalene; those that came after them proved the general theorem as follows: — "The three angles of every triangle are equal to two right angles." So also in the sections of a cone ; for they viewed the so-called " section of the rightangled cone...
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Practical Surveying: A Text-book for Students Preparing for Examinations Or ...

George William Usill - 1889 - 306 Seiten
...the two interior angles H i A and HA i ; and because the angles A v H and iv E are equal, and that the three angles of every triangle are equal to two right angles, therefore the two angles VIE and s EH are together equal to the two angles AH v and HA i, and therefore...
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Greek Geometry from Thales to Euclid

George Johnston Allman - 1889 - 266 Seiten
...and lastly in the scalene ; those that came after them proved the general theorem as follows : — " The three angles of every triangle are equal to two right angles." So also in the sections of a cone ; for they viewed the so called " section of the rightangled cone...
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The Essentials of Logic, Being Ten Lectures on Judgment and Inference

Bernard Bosanquet - 1895 - 188 Seiten
...Predicate. " William Pitt was a great statesman "=" There ' was a great statesman named William Pitt " ; " The three angles of every triangle are equal to two right angles " = " There are figures known as triangles with their three angles equal to two right angles " ; "...
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The Essentials of Logic: Being Ten Lectures on Judgment and Inference

Bernard Bosanquet - 1897 - 188 Seiten
...Predicate. " William Pitt was a great statesman " = " There was a great statesman named William Pitt" ; " The three angles of every triangle are equal to two right angles " = " There are figures known as triangles with their three angles equal to two right angles"; "All...
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The Public-school Journal: Devoted to the Theory and Art of School ..., Band 15

1895 - 696 Seiten
...Birmingham can't understand! Get to the heart of it. Don't grant him anything. Don't be quite sure that the three angles of every triangle are equal to two right angles; and don't at all allow, until you are yourself fairly convinced, that parallel straight lines produced...
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Life and Remains of the Rev. R. H. Quick

Robert Hebert Quick - 1899 - 564 Seiten
...We wish to recall that proposition. Arbitrary association of ideas immediately suggests the words, 'The three angles of every triangle are equal to two right angles.' But at first these are words only : our mind runs along an established train of sounds. By well-formed,...
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Spinoza; a Handbook to the Ethics

James Allanson Picton - 1907 - 282 Seiten
...from are always verifiable. The skilled surveyor's measurements by triangulation assume always that the three angles of every triangle are equal to two right angles. And any one who wantsvefification can have it, either roughly and imperfectly by the use of instruments...
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An Outline of Logic

Boyd Henry Bode - 1910 - 348 Seiten
...predicate. ' William Pitt was a great statesman ' = ' There was a great1 statesman named William Pitt '; ' The three angles of every triangle are equal to two right angles ' = ' There are figures known as triangles with their three angles equal to two right angles '; ' All...
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Mind, Band 23

1914 - 662 Seiten
...for such a proposition as " My first penitent was a murderer " seems to be offered as adequate for " The three angles of every triangle are equal to two right angles ". Granting for the sake of argument that the first proposition really means that the same individual...
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