Purchase Solution

examples of disjunctive reasoning

Not what you're looking for?

Ask Custom Question

Systematic reasoning - Patterns of deductive thinking

Decide whether the following disjunctive arguments are valid or invalid:

1. Either Bowser ran away or he was hit by a car.
Bowser ran away.
Therefore, Bowser was not hit by a car.

2. Either Bowser ran away or he was hit by a car.
Bowser is too smart to be hit by a car.
Therefore, Bowser ran away.

3. Either you are with us or against us.
You are not with us.
Therefore, you are against us.

Purchase this Solution
Solution Summary

going from either/or to therefore. systematic reasoning and examples of disjunctive arguments

Solution Preview

1) Valid. The choice is either A (ran away) or B (hit by a car). The 'or' means that if B, then not A. ...

Purchase this Solution
Free BrainMass Quizzes
The Hero's Journey

This quiz will test your knowledge over what the hero's journey is and some examples from literature and the performing arts.

Learning Genres

This quiz gives students an easy way to practice learning about different genres of writing by associating current movie pictures and stories with a given category. The listing of genres provided are terms that every college student must learn while matriculating through school.

Wuthering Heights

This quiz will review some of the salient aspects of the novel's plot, setting, characters, and theme. It will constitute a brief check of factual information, with an occasional interpretive element. For those students reading Wuthering Heights for the first time, or for those readers returning to the book, the quiz will serve to reinforce understanding and to enable recall of the first few chapters and basic outline of the novel.

Reading for Cues to Audience, Purpose and Significance

This quiz will help students hone in on their skills for interpreting a piece of writing.

The Third Wave Reading Comprehension

Check students' understanding of initial reading of The Third Wave (found at http://libcom.org/history/the-third-wave-1967-account-ron-jones). Great ESL exercise!

View More Free Quizzes
Related BrainMass Solutions

  • Evaluating Arguments

    Disjunctive Syllogism Disjunctive syllogism is a valid rule of inference. If we are told that at least one of two statements is true; and also told that it is not the former that is true; we can infer that it has to be the latter that is true.

  • A logical fallacy

    The reasoning here is similar to the valid reasoning involved in what is sometimes called disjunctive syllogism (a.k.a. disjunction elimination).

  • Proofs using Modus Pollens, Modus Tollens

    (R > M) [Disjunctive syllogism of 1 and 2] 4. ~R [Modus tollens of 2 and 3] 5. R v H [Premise] 6. H [Disjunctive syllogism on 4 and 5] 7. H > (D <> A) [Premise] 8. (D <> A) [Modus ponens on 6 and 7; Conclusion] C). 1.

  • Solving Boolean Algebra Equations

    a) Write f in disjunctive normal form and in conjunctive normal form. b) Give the truth table of f? (the complement of f). c) Give f? in disjunctive normal form and in conjunctive normal form. The solution is attached below in two files.

  • Project Staff Team

    Examples of this would be workplaces, campus organizations, or juries. There are several types of work groups, based on the work of Ivan Steiner3: ?

  • Assumptions, Critical Thinking and Logic

    There are three basic types of syllogism: hypothetical, disjunctive, and categorical (see more detail on each type at http://www.answers.com/topic/syllogism).

  • Construct proofs for given valid arguments using the eight rules of inference.

    630984 Construct proofs using the eight rules of inference Using the eight rules of inference (Simplication, Conjunction, Addition, Constructive Dilemma, Modus Ponens, Modus Tollens, Disjunctive Syllogism and Hypothetical Syllogism), construct a proof

  • Using the 18 Rules of Natural Deduction in Proofs

    B * C 1, 4 Disjunctive Syllogism 6. B 5 Simplification 7. B * ~B 6, 3 Conjunction 8. ~~B 3-7 Indirect Proof 9. B 8 Double Negation 1. A=B 2. A v B 3. A>(B>C) /C 4. (A > B) * (B > A) 1 Equivalence 5. A > B 4 Simplification 6.

  • Rules of Inference, Logic and Symbology

    58274 Rules of Inference, Logic and Symbology Designate each simple statement with a letter.

View More Related Solutions