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Department
Philosophy
Course
PHIL 105
Professor
Kirstie
Semester
Summer

Description
#4 Degrees of Cogency: Anything less than 50%, will give an ill-formed argument. Deductively strong 1) Deductively valid; 2) Have premises that are justified, or reasonable/rational to believe. Deductive Strength 1. deductively valid; 2. premises are reasonable to believe 3. It is not circular Deductively weak if: 4. Invalid OR 5. One or more of its premises is not reasonable to believe.; OR 6. It is a circular argument. Circular arguments Acircular argument presupposes the truth of the claim that it is arguing for. 7. The bible says that God exists. 8. The bible was written by God. ---- 9. God exists SoundArguments: valid, true premises, anyone has reason to believe them. An argument is defeated by a person’s total evidence if and only if: -The argument is cogent; -The person's total evidence shows that the conclusion is not reasonable to believe. General
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