Philosophy › Section E · Logic and reasoning › Topic E.2
Logical statements
Before you can judge an argument, you have to know exactly what its statements claim. A few kinds of statement, above all the conditional, carry most philosophical reasoning, and truth tables show precisely when each one is true.
In this topic
- Statements and connectives
- Not, and, or
- The conditional
- Many ways to say if
- Necessary and sufficient conditions
- Converse and contrapositive
- Worked example: checking equivalence with a truth table
- Counterexamples
- Universal statements
- Worked example: translating and testing
- Common mistakes to avoid
- Key takeaways
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