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the two sides BE, EF are equal to the two sides CE, EF.
But
the angle BEF is also greater than the angle CEF;
therefore
the base BF is greater than the base CF. [I.24]
For the same reason
CF is also greater than FG.
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T H E E L E M E N T S |
Book III Proposition 7 | |
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Again, since BE is equal to CE, and FE is common, the two sides BE, EF are equal to the two sides CE, EF. But the angle BEF is also greater than the angle CEF; therefore the base BF is greater than the base CF. [I.24] For the same reason CF is also greater than FG. |
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