All Questions
8 questions
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I need help understanding Sound reasoning! Deductive validity and truth
No arguments with false premises and a true conclusion are valid for If an argument is valid and the premises are true, then it's a sound argument.
no arguments with mood and figure IAI-4 are ...
2
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5
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722
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How can syllogisms with contradictory premises be valid?
A syllogism is valid if it is impossible for the premises to be true and at the same time the conclusion to be false.
Consider the following syllogism:
P1: This apple is red.
P2: This apple is not red....
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1
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Question of Validity in syllogisms of deductive argument
I read the following excerpt from my A-Level Philosophy book:
"Two key terms that you need to understand in relation to deductions and other
forms of argument are ‘validity’ and ‘soundness’. ...
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0
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How can we prove this argument is invalid?
Let's say below is the argument,
Premise 1: All men are mortal
Premise 2: Socrates is a man
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Conclusion: Therefore, Socrates can think
Now, to prove an ...
2
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3
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Why is there an O type conclusion in modus celaront
Modus celaront is type logical syllogism.
No reptiles have fur. (MeP)
All snakes are reptiles. (SaM)
∴ Some snakes have no fur. (SoP)
The conclusion is of a O type(Some .. are not ...). Why is ...
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6
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5
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What is the nature of "validity" in deduction when dealing with conclusions unrelated to premises?
I studying graduate math (not very far into it), and I realized that some of the higher-level math texts I would like to read are hard to understand without a strong basis in logic. Now I've taken ...
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4
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4
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Reverse Conclusion of Hypothetical Syllogism
I am presented with an argument of form:
If p, then q.
If q, then r.
Therefore, if r, then p.
Does this structure have a specific title? I know that it is invalid, and am assuming that "reverse ...
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Are "All A is B" and "If A then B" always logically equivalent?
Will "All A is B" always imply "If A then B?"
If so, can we say that the following follows the form of Modus Ponens?
All dogs are mammals.
Toby is a dog.
So, Toby is a mammal.
Can I rewrite ...
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