A history of Greek mathematics Vol.II from Aristarchus to Diophantus by Heath, Thomas Little, Sir, 1921
MACEDONIA is GREECE and will always be GREECE- (if they are desperate to steal a name, Monkeydonkeys suits them just fine) ΚΑΤΩ Η ΣΥΓΚΥΒΕΡΝΗΣΗ ΤΩΝ ΠΡΟΔΟΤΩΝ!!! ΦΕΚ,ΚΚΕ,ΚΝΕ,ΚΟΜΜΟΥΝΙΣΜΟΣ,ΣΥΡΙΖΑ,ΠΑΣΟΚ,ΝΕΑ ΔΗΜΟΚΡΑΤΙΑ,ΕΓΚΛΗΜΑΤΑ,ΔΑΠ-ΝΔΦΚ, MACEDONIA,ΣΥΜΜΟΡΙΤΟΠΟΛΕΜΟΣ,ΠΡΟΣΦΟΡΕΣ,ΥΠΟΥΡΓΕΙΟ,ΕΝΟΠΛΕΣ ΔΥΝΑΜΕΙΣ,ΣΤΡΑΤΟΣ, ΑΕΡΟΠΟΡΙΑ,ΑΣΤΥΝΟΜΙΑ,ΔΗΜΑΡΧΕΙΟ,ΝΟΜΑΡΧΙΑ,ΠΑΝΕΠΙΣΤΗΜΙΟ,ΛΟΓΟΤΕΧΝΙΑ,ΔΗΜΟΣ,LIFO,ΛΑΡΙΣΑ, ΠΕΡΙΦΕΡΕΙΑ,ΕΚΚΛΗΣΙΑ,ΟΝΝΕΔ,ΜΟΝΗ,ΠΑΤΡΙΑΡΧΕΙΟ,ΜΕΣΗ ΕΚΠΑΙΔΕΥΣΗ,ΙΑΤΡΙΚΗ,ΟΛΜΕ,ΑΕΚ,ΠΑΟΚ,ΦΙΛΟΛΟΓΙΚΑ,ΝΟΜΟΘΕΣΙΑ,ΔΙΚΗΓΟΡΙΚΟΣ,ΕΠΙΠΛΟ, ΣΥΜΒΟΛΑΙΟΓΡΑΦΙΚΟΣ,ΕΛΛΗΝΙΚΑ,ΜΑΘΗΜΑΤΙΚΑ,ΝΕΟΛΑΙΑ,ΟΙΚΟΝΟΜΙΚΑ,ΙΣΤΟΡΙΑ,ΙΣΤΟΡΙΚΑ,ΑΥΓΗ,ΤΑ ΝΕΑ,ΕΘΝΟΣ,ΣΟΣΙΑΛΙΣΜΟΣ,LEFT,ΕΦΗΜΕΡΙΔΑ,ΚΟΚΚΙΝΟ,ATHENS VOICE,ΧΡΗΜΑ,ΟΙΚΟΝΟΜΙΑ,ΕΝΕΡΓΕΙΑ, ΡΑΤΣΙΣΜΟΣ,ΠΡΟΣΦΥΓΕΣ,GREECE,ΚΟΣΜΟΣ,ΜΑΓΕΙΡΙΚΗ,ΣΥΝΤΑΓΕΣ,ΕΛΛΗΝΙΣΜΟΣ,ΕΛΛΑΔΑ, ΕΜΦΥΛΙΟΣ,ΤΗΛΕΟΡΑΣΗ,ΕΓΚΥΚΛΙΟΣ,ΡΑΔΙΟΦΩΝΟ,ΓΥΜΝΑΣΤΙΚΗ,ΑΓΡΟΤΙΚΗ,ΟΛΥΜΠΙΑΚΟΣ, ΜΥΤΙΛΗΝΗ,ΧΙΟΣ,ΣΑΜΟΣ,ΠΑΤΡΙΔΑ,ΒΙΒΛΙΟ,ΕΡΕΥΝΑ,ΠΟΛΙΤΙΚΗ,ΚΥΝΗΓΕΤΙΚΑ,ΚΥΝΗΓΙ,ΘΡΙΛΕΡ, ΠΕΡΙΟΔΙΚΟ,ΤΕΥΧΟΣ,ΜΥΘΙΣΤΟΡΗΜΑ,ΑΔΩΝΙΣ ΓΕΩΡΓΙΑΔΗΣ,GEORGIADIS,ΦΑΝΤΑΣΤΙΚΕΣ ΙΣΤΟΡΙΕΣ, ΑΣΤΥΝΟΜΙΚΑ,ΦΙΛΟΣΟΦΙΚΗ,ΦΙΛΟΣΟΦΙΚΑ,ΙΚΕΑ,ΜΑΚΕΔΟΝΙΑ,ΑΤΤΙΚΗ,ΘΡΑΚΗ,ΘΕΣΣΑΛΟΝΙΚΗ,ΠΑΤΡΑ, ΙΟΝΙΟ,ΚΕΡΚΥΡΑ,ΚΩΣ,ΡΟΔΟΣ,ΚΑΒΑΛΑ,ΜΟΔΑ,ΔΡΑΜΑ,ΣΕΡΡΕΣ,ΕΥΡΥΤΑΝΙΑ,ΠΑΡΓΑ,ΚΕΦΑΛΟΝΙΑ, ΙΩΑΝΝΙΝΑ,ΛΕΥΚΑΔΑ,ΣΠΑΡΤΗ,ΠΑΞΟΙ
MACEDONIA is GREECE and will always be GREECE- (if they are desperate to steal a name, Monkeydonkeys suits them just fine)
ΚΑΤΩ Η ΣΥΓΚΥΒΕΡΝΗΣΗ ΤΩΝ ΠΡΟΔΟΤΩΝ!!!
ΦΕΚ,ΚΚΕ,ΚΝΕ,ΚΟΜΜΟΥΝΙΣΜΟΣ,ΣΥΡΙΖΑ,ΠΑΣΟΚ,ΝΕΑ ΔΗΜΟΚΡΑΤΙΑ,ΕΓΚΛΗΜΑΤΑ,ΔΑΠ-ΝΔΦΚ, MACEDONIA,ΣΥΜΜΟΡΙΤΟΠΟΛΕΜΟΣ,ΠΡΟΣΦΟΡΕΣ,ΥΠΟΥΡΓΕΙΟ,ΕΝΟΠΛΕΣ ΔΥΝΑΜΕΙΣ,ΣΤΡΑΤΟΣ, ΑΕΡΟΠΟΡΙΑ,ΑΣΤΥΝΟΜΙΑ,ΔΗΜΑΡΧΕΙΟ,ΝΟΜΑΡΧΙΑ,ΠΑΝΕΠΙΣΤΗΜΙΟ,ΛΟΓΟΤΕΧΝΙΑ,ΔΗΜΟΣ,LIFO,ΛΑΡΙΣΑ, ΠΕΡΙΦΕΡΕΙΑ,ΕΚΚΛΗΣΙΑ,ΟΝΝΕΔ,ΜΟΝΗ,ΠΑΤΡΙΑΡΧΕΙΟ,ΜΕΣΗ ΕΚΠΑΙΔΕΥΣΗ,ΙΑΤΡΙΚΗ,ΟΛΜΕ,ΑΕΚ,ΠΑΟΚ,ΦΙΛΟΛΟΓΙΚΑ,ΝΟΜΟΘΕΣΙΑ,ΔΙΚΗΓΟΡΙΚΟΣ,ΕΠΙΠΛΟ, ΣΥΜΒΟΛΑΙΟΓΡΑΦΙΚΟΣ,ΕΛΛΗΝΙΚΑ,ΜΑΘΗΜΑΤΙΚΑ,ΝΕΟΛΑΙΑ,ΟΙΚΟΝΟΜΙΚΑ,ΙΣΤΟΡΙΑ,ΙΣΤΟΡΙΚΑ,ΑΥΓΗ,ΤΑ ΝΕΑ,ΕΘΝΟΣ,ΣΟΣΙΑΛΙΣΜΟΣ,LEFT,ΕΦΗΜΕΡΙΔΑ,ΚΟΚΚΙΝΟ,ATHENS VOICE,ΧΡΗΜΑ,ΟΙΚΟΝΟΜΙΑ,ΕΝΕΡΓΕΙΑ, ΡΑΤΣΙΣΜΟΣ,ΠΡΟΣΦΥΓΕΣ,GREECE,ΚΟΣΜΟΣ,ΜΑΓΕΙΡΙΚΗ,ΣΥΝΤΑΓΕΣ,ΕΛΛΗΝΙΣΜΟΣ,ΕΛΛΑΔΑ, ΕΜΦΥΛΙΟΣ,ΤΗΛΕΟΡΑΣΗ,ΕΓΚΥΚΛΙΟΣ,ΡΑΔΙΟΦΩΝΟ,ΓΥΜΝΑΣΤΙΚΗ,ΑΓΡΟΤΙΚΗ,ΟΛΥΜΠΙΑΚΟΣ, ΜΥΤΙΛΗΝΗ,ΧΙΟΣ,ΣΑΜΟΣ,ΠΑΤΡΙΔΑ,ΒΙΒΛΙΟ,ΕΡΕΥΝΑ,ΠΟΛΙΤΙΚΗ,ΚΥΝΗΓΕΤΙΚΑ,ΚΥΝΗΓΙ,ΘΡΙΛΕΡ, ΠΕΡΙΟΔΙΚΟ,ΤΕΥΧΟΣ,ΜΥΘΙΣΤΟΡΗΜΑ,ΑΔΩΝΙΣ ΓΕΩΡΓΙΑΔΗΣ,GEORGIADIS,ΦΑΝΤΑΣΤΙΚΕΣ ΙΣΤΟΡΙΕΣ, ΑΣΤΥΝΟΜΙΚΑ,ΦΙΛΟΣΟΦΙΚΗ,ΦΙΛΟΣΟΦΙΚΑ,ΙΚΕΑ,ΜΑΚΕΔΟΝΙΑ,ΑΤΤΙΚΗ,ΘΡΑΚΗ,ΘΕΣΣΑΛΟΝΙΚΗ,ΠΑΤΡΑ, ΙΟΝΙΟ,ΚΕΡΚΥΡΑ,ΚΩΣ,ΡΟΔΟΣ,ΚΑΒΑΛΑ,ΜΟΔΑ,ΔΡΑΜΑ,ΣΕΡΡΕΣ,ΕΥΡΥΤΑΝΙΑ,ΠΑΡΓΑ,ΚΕΦΑΛΟΝΙΑ, ΙΩΑΝΝΙΝΑ,ΛΕΥΚΑΔΑ,ΣΠΑΡΤΗ,ΠΑΞΟΙ
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ZENODORUS 211<br />
Now, <strong>by</strong> hypothesis, DB + BA = GB + BF;<br />
therefore<br />
DB + BA=HB + BF> HF.<br />
By an easy lemma, since the triangles DEB, ABC are similar,<br />
(DB + BAf = {DL + AKf + (BL + BK) 2<br />
= (DL + AK)* + LK\<br />
Therefore {DL + AKf + LK 2 > HF 2<br />
whence<br />
DL + AK > GL + FK,<br />
and it follows that AF > GD.<br />
But BK > BL; therefore<br />
>{GL + FK) 2 + LK 2 ,<br />
AF.BK > GD.BL.<br />
Hence the hollow-angled (figure) ' ' (KoiXoycoviov) ABFC is<br />
greater than the hollow-angled (figure) GEDB.<br />
Adding A DEB + A BFG <strong>to</strong> each, we have<br />
h<br />
ADEB + £ABC> AGEB+AFBC.<br />
The above is the only case taken <strong>by</strong> Zenodorus. The pro<strong>of</strong><br />
But it fails in the<br />
still holds if EB = BG, so that BK = BL.<br />
case in which EB > BG and the vertex G <strong>of</strong> the triangle EB<br />
belonging <strong>to</strong> the non-similar pair is still above D and not<br />
below it (as F is below A in the preceding case). This was<br />
no doubt the reason why Pappus gave a pro<strong>of</strong> intended <strong>to</strong><br />
apply <strong>to</strong> all the cases without distinction. This pro<strong>of</strong> is the<br />
same as the above pro<strong>of</strong> <strong>by</strong> Zenodorus up <strong>to</strong> the point where<br />
it is proved that<br />
DL + AK > GL + FK,<br />
but there diverges. Unfortunately the text is bad, and gives<br />
no sufficient indication <strong>of</strong> the course <strong>of</strong> the pro<strong>of</strong> ; but it would<br />
seem that Pappus used the relations<br />
and<br />
DL : GL = A DEB : A GEB,<br />
AK : FK = A ABC: A FBC,<br />
AK 2 :DL =A 2 ABC: A DEB,<br />
combined <strong>of</strong> course with the fact that GB + BF = DB + BA,<br />
in order <strong>to</strong> prove the proposition that,<br />
according as<br />
DL + AK > or < GL + FK,<br />
ADEB + AABC> or < AGEB + AFBC.<br />
p2<br />
212 SUCCESSORS OF THE GREAT GEOMETERS<br />
The pro<strong>of</strong> <strong>of</strong> his proposition, whatever it was, Pappus<br />
but in the text as we have it<br />
indicates that he will give later ;<br />
the promise is not fulfilled.<br />
Then follows the pro<strong>of</strong> that the maximum polygon <strong>of</strong> given<br />
perimeter is both equilateral and<br />
equiangular.<br />
(1) It is equilateral.<br />
For, if not, let two sides <strong>of</strong> the<br />
maximum polygon, as AB, BC, be<br />
unequal. Join AC, and on iC as<br />
base draw the isosceles triangle AFC<br />
such that AF+ FC = AB + BC. The<br />
area <strong>of</strong> the triangle AFC is then<br />
greater than the area <strong>of</strong> the triangle ABC, and the area <strong>of</strong><br />
the whole polygon has been increased <strong>by</strong> the construction:<br />
which is impossible, as <strong>by</strong> hypothesis the area is a<br />
maximum.<br />
Similarly it can be proved that no other side is unequal<br />
<strong>to</strong> any other.<br />
(2) It is also equiangular.<br />
For, if<br />
DEC.<br />
possible, let the maximum polygon ABCDE (which<br />
we have proved <strong>to</strong> be equilateral)<br />
have the angle at B greater than<br />
the angle at D. ThenBA C, DEC are<br />
non-similar isosceles triangles. On<br />
AC, CE as bases describe the two<br />
isosceles triangles FAC, GEC similar<br />
<strong>to</strong> one another which have the sum<br />
<strong>of</strong> their perimeters equal <strong>to</strong> the<br />
sum <strong>of</strong> the perimeters <strong>of</strong> BAG,<br />
Then the sum <strong>of</strong> the areas <strong>of</strong> the two similar isosceles<br />
triangles is greater than the sum <strong>of</strong> the areas <strong>of</strong> the triangles<br />
BAC, DEC) the area <strong>of</strong> the polygon is therefore increased,<br />
which is contrary <strong>to</strong> the hypothesis.<br />
Hence no two angles <strong>of</strong> the polygon can be unequal.<br />
The maximum polygon <strong>of</strong> given perimeter is therefore both<br />
equilateral and equiangular.<br />
Dealing with the sphere in relation <strong>to</strong> other solids having