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Ideas for 'The Roots of Reference', 'Foundations without Foundationalism' and 'Bertrand Russell: Spirit of Solitude'

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2 ideas

5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=

13626

Semantic consequence is ineffective in second-order logic [Shapiro]

13637

If a logic is incomplete, its semantic consequence relation is not effective [Shapiro]