Combining Texts
Ideas for
'An Inquiry into Meaning and Truth', 'Towards a Universal Characteristic' and 'Elements of Mind'
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11 ideas
5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
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19370
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'Blind thought' is reasoning without recognition of the ingredients of the reasoning [Leibniz, by Arthur,R]
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16486
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The physical world doesn't need logic, but the mental world does [Russell]
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5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
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2947
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Questions wouldn't lead anywhere without the law of excluded middle [Russell]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / e. or
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16480
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A disjunction expresses indecision [Russell]
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16479
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'Or' expresses hesitation, in a dog at a crossroads, or birds risking grabbing crumbs [Russell]
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16481
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'Or' expresses a mental state, not something about the world [Russell]
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16487
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Maybe the 'or' used to describe mental states is not the 'or' of logic [Russell]
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16483
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Disjunction may also arise in practice if there is imperfect memory. [Russell]
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5. Theory of Logic / F. Referring in Logic / 2. Descriptions / c. Theory of definite descriptions
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4098
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The theory of descriptions supports internalism, since they are thinkable when the object is non-existent [Crane]
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5. Theory of Logic / K. Features of Logics / 5. Incompleteness
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19391
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We can assign a characteristic number to every single object [Leibniz]
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5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / c. Grelling's paradox
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16475
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A 'heterological' predicate can't be predicated of itself; so is 'heterological' heterological? Yes=no! [Russell]
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