Falsafa

Comma for either/or — dharma, courage. Spelling forgiving — corage finds courage.

    The Atlas·Ideas

    Reductio ad absurdum

    idea · 1 work · 2 mentions · 8 anchored passages

    if not · if possible, let it have that ratio · which is impossible · which was proved impossible

    spoken of as

    1 expression

    Proof by contradiction“reductio ad absurdum”1 mention

    Elements (Greek)

    which was proved impossible.
    chapter 12

    in the texts

    ElementsHellenistic · Greek

    The recurring proof technique of assuming the negation of what is to be shown (a smaller number with the same property) and deriving a contradiction ('which is impossible'), used throughout every proposition in this window.

    which is impossible.
    chapter 7
    which is impossible.
    chapter 7
    which is impossible.
    chapter 7