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Negation

The negation of a claim is its real opposite: true exactly when the claim is false. The negation of "all passed" is "not all passed" - not "none passed".

Depth 1 · Foundation

You can write the real opposite of a claim, including "all" and "some" claims, and tell it apart from a claim that only sounds opposite.

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Depths of understanding

  1. 1

    Foundation

    You can write the real opposite of a claim, including "all" and "some" claims, and tell it apart from a claim that only sounds opposite.

    Opens after

    ClaimA negation is a claim: the one that is true exactly when another is false.All, some and noneThe opposite of an "all" claim is a "some... not" claim.

Your path here

What's still between you and Negation, depth 1, in the order you can learn it.

  1. 1ClaimDepth 1 · Foundation · Logic
  2. 2All, some and noneDepth 1 · Foundation · Logic
  3. 3NegationDepth 1 · Foundation · Logic

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