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Ideas of C. Anthony Anderson, by Text
[American, fl. 2011, Professor at the University of California, Santa Barbara]
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2014
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Identity and Existence in Logic
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1.5
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p.59
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18763
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Basic variables in second-order logic are taken to range over subsets of the individuals
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1.5
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p.60
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18764
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The notion of 'property' is unclear for a logical version of the Identity of Indiscernibles
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1.6
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p.60
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18765
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Individuation was a problem for medievals, then Leibniz, then Frege, then Wittgenstein (somewhat)
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2.1
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p.63
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18766
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's is non-existent' cannot be said if 's' does not designate
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2.3
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p.67
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18767
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Free logics has terms that do not designate real things, and even empty domains
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2.5
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p.71
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18768
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We cannot pick out a thing and deny its existence, but we can say a concept doesn't correspond
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2.6
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p.72
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18769
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Do mathematicians use 'existence' differently when they say some entity exists?
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2.6
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p.74
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18770
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We can distinguish 'ontological' from 'existential' commitment, for different kinds of being
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2.6
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p.74
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18771
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Stop calling ∃ the 'existential' quantifier, read it as 'there is...', and range over all entities
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