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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

21586

The logical connectives are not objects, but are formal, and need a context [Russell]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

21777

Negation of negation doubles back into a self-relationship [Hegel, by Houlgate]