• Thumbnail for Sheffer stroke
    In Boolean functions and propositional calculus, the Sheffer stroke denotes a logical operation that is equivalent to the negation of the conjunction operation...
    18 KB (1,455 words) - 09:32, 7 November 2024
  • typography. It has many names, often related to particular meanings: Sheffer stroke (in logic), pipe, bar, or (literally, the word "or"), vbar, and others...
    26 KB (3,036 words) - 04:09, 2 November 2024
  • the logical NAND, usually symbolized with a vertical line called the Sheffer stroke, or its dual logical NOR (usually symbolized with a vertical arrow or...
    4 KB (525 words) - 00:28, 26 March 2024
  • very large integers ↑, a mathematical game theory position Up ↑ or Sheffer stroke, the logical connective "not both" or NAND ↑, the APL function 'take'...
    1 KB (176 words) - 18:33, 7 October 2024
  • Thumbnail for Logical NOR
    \operatorname {NOR} } . As with its dual, the NAND operator (also known as the Sheffer stroke—symbolized as either ↑ {\displaystyle \uparrow } , ∣ {\displaystyle...
    15 KB (1,223 words) - 05:50, 7 November 2024
  • Thumbnail for Principia Mathematica
    introduction of the Sheffer stroke ("|") to symbolise "incompatibility" (i.e., if both elementary propositions p and q are true, their "stroke" p | q is false)...
    71 KB (9,459 words) - 05:29, 18 November 2024
  • known as the Sheffer stroke). It is one of 25 candidate axioms for this property identified by Stephen Wolfram, by enumerating the Sheffer identities of...
    7 KB (795 words) - 00:02, 18 October 2023
  • recommended instead. [by whom?] ↑ | U+2191 U+007C upwards arrow vertical line Sheffer stroke, the sign for the NAND operator (negation of conjunction). ↓ U+2193...
    25 KB (229 words) - 11:25, 14 September 2024
  • gates using NOR logic. Boolean algebra Flash memory Logic gate symbols Sheffer stroke Mano, M. Morris and Charles R. Kime. Logic and Computer Design Fundamentals...
    6 KB (681 words) - 10:54, 1 November 2024
  • {\displaystyle A} ∴ ¬ B {\displaystyle \therefore \neg B} Based on the Sheffer Stroke (alternative denial), "|", the inference can also be formalized in this...
    2 KB (245 words) - 03:06, 3 March 2024
  • structures and chip deposition geometries that produce NAND logic elements Sheffer stroke – other name NOR logic – like NAND gates, NOR gates are also universal...
    11 KB (825 words) - 11:00, 1 November 2024
  • expressed using quantifiers. Additional logical connectives such as the Sheffer stroke, Dpq (NAND), and exclusive or, Jpq. Non-logical symbols represent predicates...
    93 KB (13,119 words) - 06:28, 11 October 2024
  • {\displaystyle {\frac {A,\neg \left(A\wedge \neg B\right)}{B}}} Because Sheffer's stroke (also known as NAND operator) is functionally complete, it can be used...
    19 KB (3,887 words) - 21:52, 28 July 2024
  • Minimal axioms for Boolean algebra Peirce arrow Read-once function Sheffer stroke Sole sufficient operator Symmetric Boolean function Symmetric difference...
    6 KB (271 words) - 23:18, 23 July 2024
  • Thumbnail for Logic gate
    first published proof was by Henry M. Sheffer in 1913, so the NAND logical operation is sometimes called Sheffer stroke; the logical NOR is sometimes called...
    40 KB (3,570 words) - 15:36, 28 October 2024
  • first published proof was by Henry M. Sheffer in 1913, so the NAND logical operation is sometimes called Sheffer stroke; the logical NOR is sometimes called...
    18 KB (1,608 words) - 17:02, 8 August 2024
  • terms of a sole sufficient operator such as the Peirce arrow (NOR) or Sheffer stroke (NAND). Similarly, in classical first-order logic, one of the quantifiers...
    51 KB (7,741 words) - 06:43, 7 November 2024
  • Thumbnail for History of computing
    first published proof was by Henry M. Sheffer in 1913, so the NAND logical operation is sometimes called Sheffer stroke; the logical NOR is sometimes called...
    59 KB (6,591 words) - 22:49, 29 October 2024
  • Thumbnail for Tractatus Logico-Philosophicus
    Wittgenstein's N-operator is a broader infinitary analogue of the Sheffer stroke, which applied to a set of propositions produces a proposition that...
    62 KB (8,015 words) - 23:35, 20 November 2024
  • Thumbnail for Logic
    {\displaystyle \to } (if...then), and ↑ {\displaystyle \uparrow } (Sheffer stroke). Given the conditional proposition p → q {\displaystyle p\to q} , one...
    145 KB (16,445 words) - 10:39, 22 November 2024
  • equations yet further; for instance, with the vertical bar representing the Sheffer stroke operation, the single axiom ( ( a ∣ b ) ∣ c ) ∣ ( a ∣ ( ( a ∣ c ) ∣...
    74 KB (9,514 words) - 04:44, 18 November 2024
  • Thumbnail for Boolean function
    of its inputs is true and the other is false ("not equal") NAND or Sheffer stroke - true when it is not the case that all inputs are true ("not both")...
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  • same cardinality stretch A convex subclass of an ordered class stroke The Sheffer stroke (only used in the second edition of PM) type As in type theory...
    20 KB (1,102 words) - 14:51, 7 April 2024
  • negation, or even using only a single connective for "not and" (the Sheffer stroke), as Jean Nicod did. A joint denial connective (logical NOR) will also...
    110 KB (11,050 words) - 16:56, 10 November 2024
  • Thumbnail for History of computer science
    first published proof was by Henry M. Sheffer in 1913, so the NAND logical operation is sometimes called Sheffer stroke; the logical NOR is sometimes called...
    50 KB (5,519 words) - 00:19, 6 October 2024
  • ¬q, Negation; 6, XOR, Exclusive disjunction; 7, NAND, Logical NAND (Sheffer stroke); 8, AND, Logical conjunction; 9, XNOR, If and only if, Logical biconditional;...
    15 KB (1,546 words) - 13:12, 28 September 2024
  • {\displaystyle \langle 2,1,0\rangle } . The expressive adequacy of the Sheffer stroke points to the primary algebra also being a ⟨ B , −   −   | ¯ ,     |...
    62 KB (6,703 words) - 16:23, 5 July 2024
  • algebra are in common use, the lattice basis, the ring basis, and the Sheffer stroke or NAND basis. These bases impart respectively a logical, an arithmetical...
    65 KB (8,232 words) - 15:14, 21 September 2024
  • Thumbnail for Willard Van Orman Quine
    innovations are introduced. For Quine, there is but one connective, the Sheffer stroke, and one quantifier, the universal quantifier. All polyadic predicates...
    57 KB (6,501 words) - 06:48, 16 November 2024
  • logic -- Set (mathematics) -- Seven Types of Ambiguity (Empson) -- Sheffer stroke -- Ship of Theseus -- Simple non-inferential passage -- Singular term...
    21 KB (1,874 words) - 16:14, 23 September 2024