Beginner · Fundamentals
Modus tollens
Visual diagram · (in preparation) · Math · (in preparation) · Worked example · 3 difficulty levels.
TL;DR. A logical rule where if a statement implies another, and the second statement is false, then the first statement must also be false.
Technical Definition
A logical rule where if a statement implies another, and the second statement is false, then the first statement must also be false.
How it works
Modus Tollens is a valid rule of inference in logic. It follows the principle that if a condition 'If P, then Q' holds, and Q is false, then P must also be false. This is because if P were true, Q would necessarily be true according to the initial statement.
Related Concepts
- Inference — Using a trained model to make predictions on new data — the deployment phase of machine learning.