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Syllogism

An argument with two reasons and a conclusion, each an "all", "some" or "no" claim about groups, linked by a middle group. Circle diagrams show whether it is valid.

Depth 1 · Foundation

You can find a syllogism's middle group, draw its reasons as circles, and see whether the circles leave room for the conclusion to be false.

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Depths of understanding

  1. 1

    Foundation

    You can find a syllogism's middle group, draw its reasons as circles, and see whether the circles leave room for the conclusion to be false.

    Opens after

    All, some and none, depth 2A syllogism is built from "all", "some" and "no" claims, checked with circle diagrams.ValidityA syllogism is valid when the circles leave no room for the conclusion to be false.

Your path here

What's still between you and Syllogism, 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
  4. 4All, some and noneDepth 2 · Deeper · Logic
  5. 5ArgumentDepth 1 · Foundation · Logic
  6. 6ValidityDepth 1 · Foundation · Logic
  7. 7SyllogismDepth 1 · Foundation · Logic

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