Exploring Propositional Logic and Truth Tree Method in Philosophy Lecture
Delve into the world of formal logic with a focus on Propositional Logic and the Truth Tree Method. Understand the rules of conjunction, disjunction, implication, biconditional, and more. Explore the special characters and concepts like atomic propositions and tautology in this insightful presentation at the Department of Philosophy, SAMSI College.
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Presentation Transcript
DEPARTMENT OF PHILOSOPHY SAMSI COLLEGE Mod: 1 Lecture: 1 4th Paper Presented by Sanjoy Karmokar
Richard Jeffrey Formal Logic: its Scope and Limits -:Truth Functional Operators:-
Propositional Logic Truth Tree Method Negative of Proposition (p q) (p q) (p q) (p q) (p q) (p q) (p q) (p q) (p q) (p q) (p q) (p q)
-:Rules use in Truth Tree Method:- The rule of conjunction:- 1. p q 2. p 3. q The rule of Negation of conjunction:- 1. (p q) 2. p 3. q
-:Rules use in Truth Tree Method:- The rule of Disjunction:- 1. (p q) 2. p 3. q The rule of Negation of Disjunction:- 1. (p q) 2. p 3. q
-:Rules use in Truth Tree Method:- The rule of Implication:- 1. (p q) 2. p 3. q The rule of Negation of Implication:- 1 . (p q) 2. p 3. q
-:Rules use in Truth Tree Method:- The rule of Biconditional:- 1. (p q) 2. p 4. p 3. q 5. q The rule of Negation of Biconditional:- 1. (p q) 2. p 4. p 3. q 5. q
Special Characters:- Restricted Mark- Atomic Proposition:- Close- X or Open -:Should be Prove:- 1. Tautology of Propositions 2. Equivalent of two Propositions 3. Validity of Arguments
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