23rd March, Monday

(Sorry if these notes suck, I kinda sorta fell asleep during that lecture. Heh.)

Reasoning
Induction - To draw a general conclusion from specific instances.
Deduction - A conclusion which necessarily follows from the premise.

Conditions
Necessary - "If and only if". E.g You can be a princess if and only if you are a girl.
Sufficient - Not necessary but good enough. E.g It is sufficient to have close-ties with the royal family if you want to be a princess. (?)

Certainty Vs Doubt
Ordinary doubt: Genuinely doubted propositions, iow when there is reason to doubt.
Philosophical doubt: Logically possible to doubt proposition, iow anyhow doubt anything.

Theories
Rationalism - Dominant foundation of knowledge is reason. (Plato, Descartes)
Empiricism - Dominanat foundation of knowledge is experience. (Hume, Locke, Aristotle)
Sceptism - We know very little/nothing at all.