In formal logic, we develop different systems of symbols and rules to express ideas and carry out proofs. There are lots of such formal systems. In this module we discuss Sentential Logic (SL). It is one of the simplest formal systems of logic, and is also known as "Propositional Logic".
- [SL01] Introduction
- [SL02] Well-formed formula
- [SL03] Connectives
- [SL04] Complex truth-tables
- [SL05] Properties & relations
- [SL06] Formalization
- [SL07] Validity
- [SL08] The indirect method
- [SL09] Indirect method: exercises
- [SL10] Material conditional
- [SL11] Derivations
- [SL12] Derivation rules 1
- [SL13] Derivation rules 2
- [SL14] List of derivation rules
- [SL15] Derivation strategies
- [SL16] Soundness
- [SL17] Completeness
- [SL18] Limitations
Before you begin
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After you have finished this module, try our next module on predicate logic!