Learn the concepts behind Propositional Logic and First Order Logic. Then how to apply them to critical thinking.

You will be surprised how much bullshit you can instantly see through by checking against a simple set of propositional statements and their conclusions to see if they are mutually exclusive.

As an example of Propositional Logic… It is raining today but there not a cloud in the sky.

Proposition 1 = It is raining today Proposition 2 = There are no clouds todays

Both Propositions 1 & 2 are mutually exclusive therefore the statement as a whole is false.