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'fragments/reports', 'Mathematical Thought from Ancient to Modern Times' and 'First-Order Modal Logic'
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2 ideas
5. Theory of Logic / F. Referring in Logic / 3. Property (λ-) Abstraction
9725
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'Predicate abstraction' abstracts predicates from formulae, giving scope for constants and functions [Fitting/Mendelsohn]
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5. Theory of Logic / K. Features of Logics / 1. Axiomatisation
17606
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Axioms reveal the underlying assumptions, and reveal relationships between different areas [Kline]
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