LogosLens
Train your eye for logical fallacies. Not debate tricks — strict logical validity.
Anything follows from a contradiction. Once you accept one invalid inference, there is no principled way to reject the next. LogosLens teaches you to see the difference.
Learn
Study fallacies with clear definitions, real-world examples, and the philosophical reasoning behind why each one fails.
Practice
Test your ability to spot fallacies in exercises drawn from common arguments, media quotes, and everyday reasoning.
Analyze
Paste any text — transcripts, articles, arguments — and tag the fallacies you find. Optional AI assist available.