Are the natural deduction introduction and elimination rules for the universal and existential quantifiers in Intuitionistic Logic the same as those for Classical Logic?
2026-03-26 06:10:33.1774505433
Intuitionistic Logic: introduction and elimination rules for the universal and existential quantifiers
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Yes, they are.
See Intuitionistic Logic.
In terms of "standard" natural deduction rules, the only rule rejected by Intuitionistic Lofic is RAA rule (or Double Negation, equivalent to LEM - see this post).