Soundness

Depths of understanding

1. 1

   Foundation

   You can check an argument twice - does it follow, are the reasons true - and sort arguments into sound, valid but not sound, and not valid.

   • Watch · 32 sTwo checks

   • Read itSound ArgumentsLogic Level 1: Good Reasons

   Opens after

   ValidityA sound argument is a valid one whose reasons are also true.
2. 2

   Deeper

   You know the second kind of good argument: cogent - strong, with true reasons and nothing important left out - and when asking for proof instead is unfair.

   • Watch · 34 sGood enough to act on

   • Read itGood Without Being a ProofLogic Level 2: The Shape of an Argument

   Master depth 1 first

   Deduction and induction, depth 2A cogent argument is a strong argument from "most" or examples with nothing important left out.

Your path here

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

1. 1ClaimDepth 1 · Foundation · Logic
2. 2ArgumentDepth 1 · Foundation · Logic
3. 3ValidityDepth 1 · Foundation · Logic
4. 4SoundnessDepth 1 · Foundation · Logic