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Ideas for
'', 'Formal and Material Consequence' and 'Wiener Logik'
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10 ideas
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
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11211
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If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]
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5. Theory of Logic / A. Overview of Logic / 3. Value of Logic
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22275
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Logic gives us the necessary rules which show us how we ought to think [Kant]
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5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
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14187
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If logic is topic-neutral that means it delves into all subjects, rather than having a pure subject matter [Read]
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5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
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14188
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Not all arguments are valid because of form; validity is just true premises and false conclusion being impossible [Read]
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14182
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If the logic of 'taller of' rests just on meaning, then logic may be the study of merely formal consequence [Read]
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14183
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Maybe arguments are only valid when suppressed premises are all stated - but why? [Read]
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5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens
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14184
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In modus ponens the 'if-then' premise contributes nothing if the conclusion follows anyway [Read]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
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14186
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Logical connectives contain no information, but just record combination relations between facts [Read]
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11212
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The sense of a connective comes from primitively obvious rules of inference [Rumfitt]
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11210
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Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt]
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