Symbolic logic proof practice
[DOC File]Introduction to Symbolic Logic - Brandeis University
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Introduction to Symbolic Logic. June 14, 2005. SD, so far. Rules for ‘&’ and ‘(’ Elimination Rules use main connectives. Elimination rules are the only way to use sentences that are already in the proof. Introduction Rules create main connectives. Introduction rules tend to be strategy rules.
[DOC File]Introduction to Symbolic Logic - Brandeis University
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Introduction to Symbolic Logic. June 16, 2005. More Proof Practice. Problems in June 15 Notes. Basic Concepts of SD. Def. A sentence . P. of SL is derivable in SD from a set ( of sentences of SL iff there is a derivation in SD in which all the primary assumptions are members of ( and
[DOC File]WS – Constructing Logic Proofs (Two Columns)
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WS – Constructing Logic Proofs (Two Columns) Statements Reasons 1. 1. Given 2. 2. Given 3. 3. Contrapositive of 1 4. 4. Law of Syllogism of 2 and 3 1. 2. Statements Reasons 1. ... Additional Practice Proofs: Statements Reasons 1. 1. Given 2. 2. Given 3. 3. Contrapositve of 1 4. 4. Law of Syllogism of 2 and 3 1. 2. Statements Reasons 1. 1 ...
[DOC File]California State University, Sacramento
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SENTENTIAL LOGIC. DEDUCTION: INDIRECT PROOF. To deduce: ~S V W. P & (~Q & ~T) Premise. P ( (S ( R) Premise. S ( [R ( (T V Q)] Premise. Author: pdn26 Last modified by: pdn26 Created Date: 3/13/2008 8:33:00 PM Company: California State University Sacramento ...
[DOC File]Constructing Proofs Using Symbolic Logic
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Fill in the reasons in this flow proof. Given: a → ~b, c → b, ~c → ~d. Prove: a → ~d. The same proof may be done correctly in more than one way. Fill in the reasons on the alternate proof for the same problem. The major difference between the two proofs is the order in which the givens were written.
[DOC File]SYMBOLIC LOGIC
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r ( t 4-10 Conditional Proof #10 (Moore & Parker, # 9, p. 351) p ( ~q Premise To show: p ( r ~r ( (s & q) Premise. p Assumption ~q 1, 3 Modus Ponens ~ q V ~s 4 Addition ~s V ~q 5 Commutation ~(s & q) 6 De Morgan’s Law ~~r 2,7 Modus Tollens. r 8 DN. p ( r 3-9 Conditional Proof
[DOCX File]Lesson 1: Getting Ready for Proof
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Although an in-depth study of symbolic logic is unrealistic given time constraints, students can possibly take a look at the truth values for the hypothesis and the conclusion of a given conditional. The following example may prove helpful: “If (student’s name from the class) gets …
[DOC File]www.fau.edu
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This course is an intermediate-level study of symbolic logic in which students will learn the methods of direct proof, conditional proof, and indirect proof as they are used in proposition logic and predicate logic. The course will begin with a quick review of the symbolization techniques of propositional logic and of truth-functional operators.
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