T H E E L E M E N T S |
Book VI Proposition 19 | |
Since then, as AB is to BC, so is DE to EF, therefore, alternatively, as AB is to DE, so is BC to EF. [V.16] But as BC is to EF, so is EF to BG; therefore also, as AB is to DE, so is EF to BG. [V.11] |
||
Previous Page Return to Propositions Next Page |