...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...

...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...

...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...

...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 " ; "...

...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...

...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...

...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,...

...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...

...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...

...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...