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1-11-11 - 1-11-11 More on necessary and sufficient...

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Unformatted text preview: 1-11-11 More on necessary and sufficient conditions o Necessary and Sufficient Conditions o Colloquial definition o Conditional definition o Diagram o ….. Colloquil Definition o A is sufficient for B o A is enough for B o A is necessary for B o A is required for B Conditional definition o A is necessary condition for B o If B, then A Being a dog is necessary for being a beagle o A is sufficient condition for B o If A, then B Being a beagle is sufficient for being a dog Other important features o Necessary and sufficient conditions don’t rule out one another o Definitions o IF A is a sufficient condition for B, then B is a necessary condition for A o Diagram o If being a beagle is a sufficient condition for being a dog, then being a dog is a necessary condition for being a beagle Arguments o Provide a justification o Can use “because” o Give reasons Explanations o Help us understand a phenomenon or some set of phenomena o Can use “Because..” o Give reasons Intermediate Conclusions o P1) McCloud is a Beagle o P2) All beagles are dogs o C1) McCloud is a dog o P3) All dogs need to play o C2) McCloud needs to play Chapter Summary o Residual questions about chapter 1 o ...
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This note was uploaded on 04/05/2012 for the course PHI 2100 taught by Professor Mikepatterson during the Spring '12 term at FSU.

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1-11-11 - 1-11-11 More on necessary and sufficient...

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