A free, interactive course in logic and ancient philosophy, from the Milesians to Plato.
A philosophy course in two units: logic — arguments and validity, propositional logic, truth tables, natural deduction, set theory, relations and modal logic; and ancient philosophy from the Milesians, Pythagoras, Heraclitus and Parmenides through the Atomists and the Sophists to Socrates and Plato.
2 units · 20 lessons · 220 practice questions · 7 languages · free on the web and Android
Start this course freePhilosophy I pairs the tools of reasoning with the thinkers who first used them. Lessons are short and followed by practice questions with instant feedback — in logic you build truth tables and proofs; in ancient philosophy you reconstruct and compare arguments.
The logic unit covers arguments, validity and soundness, the language of propositional logic, truth tables, entailment and consistency, natural deduction and proof strategy, set theory, relations and functions, and modal logic with possible worlds. The ancient philosophy unit runs from the Milesians, Pythagoras, Heraclitus and Parmenides, through Zeno, the Pluralists and the Atomists, to the Sophists, Socrates and Plato.
Every lesson explanation in Philosophy I is free to read on the web. Practice questions and interactive scenes are in the app.
Yes. Philosophy I is free on Tryals, on the web and on Android.
2 units, 20 lessons and 220 practice questions. It is self-paced: each lesson is short, followed by questions with instant feedback, and your progress is saved across devices.
English, Catalan, German, Spanish, French, Italian and Portuguese. You can switch language inside the app.
No. The logic unit starts from what an argument is and builds the formal tools step by step.
Yes. Natural deduction and proof strategy have their own lessons, practised with exercises rather than read about.