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• 14:28, 20 October 2025 Bfh-sts talk contribs created page Sheffer stroke (Created page with "= Sheffer stroke = The Sheffer stroke (also called ''NAND'') is a logical operation that returns true unless both propositions are true. It is functionally complete, meaning all other logical operations can be built from it. == Symbols == * p ↑ q (mathematical notation) * p NAND q (common name) * NOT (p ∧ q) (definition) == Definition == The Sheffer stroke produces the negation of conjunction. == Truth Table == {| class="wikitab...")