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Logic
OLI - 1. Statements and arguments
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Logic
Leonel Morales
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15 Terms
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1
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logic
the study of principles of correct reasoning.
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argument
reason for accepting the truth of some particular claim.
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conclusion
the particular claim that an argument is for
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statement
something that has to be either true or false, and can't be both.
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types of sentences
declarative, indexical, ambiguous, non-declarative
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premise
set of statements, the reason for accepting the truth of the conclusion.
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explanation
simply provides information, it doesn't attempt to establish the truth of a statement.
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definition
defines a word or phrase.
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description
provides a mental image of the object or situation being described.
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standard form
write out all the premises first, then separate the conclusion by drawing a line and setting the symbol ∴ (therefore)
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valid
any argument where the truth of the premises makes it impossible for the conclusion to be false
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inductively strong
an argument where the truth of the premises does not guarantee the truth of the conclusion, but rather makes it highly probably to be true
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sound
arguments that are valid and have true premises
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cogent
arguments that are strong and have true premises
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proof
an argument that demonstrates its conclusion by a series of logical steps