T H E E L E M E N T S |
Book VI Proposition 23 | |
For let them be placed so that BC is in a straight line with CG; therefore DC is also in a straight line with CE. Let the parallelogram DG be completed; let a straight line K be set out, let it be contrived that, as BC is to CG, so is K to L, and, as DC is to CE, so is L to M. [VI.12] |
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