enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Method of analytic tableaux - Wikipedia

    en.wikipedia.org/wiki/Method_of_analytic_tableaux

    A graphical representation of a partially built propositional tableau. In proof theory, the semantic tableau [1] (/ t æ ˈ b l oʊ, ˈ t æ b l oʊ /; plural: tableaux), also called an analytic tableau, [2] truth tree, [1] or simply tree, [2] is a decision procedure for sentential and related logics, and a proof procedure for formulae of first-order logic. [1]

  3. Binary decision diagram - Wikipedia

    en.wikipedia.org/wiki/Binary_decision_diagram

    The left figure below shows a binary decision tree (the reduction rules are not applied), and a truth table, each representing the function (,,).In the tree on the left, the value of the function can be determined for a given variable assignment by following a path down the graph to a terminal.

  4. Truth table - Wikipedia

    en.wikipedia.org/wiki/Truth_table

    A truth table is a mathematical table used in logic—specifically in connection with Boolean algebra, Boolean functions, and propositional calculus—which sets out the functional values of logical expressions on each of their functional arguments, that is, for each combination of values taken by their logical variables. [1]

  5. Talk:Truth table/Archive 1 - Wikipedia

    en.wikipedia.org/wiki/Talk:Truth_table/Archive_1

    3 Truth table for most commonly used logical operators. 2 comments. 4 AND / OR symbols. 1 comment. 5 Use TeX! And a small concern. 2 comments. 6 Consistency. 1 comment.

  6. Talk:Truth table - Wikipedia

    en.wikipedia.org/wiki/Talk:Truth_table

    As an aside, Tenant explains on p.460, truth value assignments need not be total functions, while on p.462, he claims that after taking care of redundancies, the disjunction truth table says if the truth value of A is T then that of (A or B) is T; the latter conclusion can be drawn (from an ordinary 4-row table as shown on p.463) only if the ...

  7. Three-valued logic - Wikipedia

    en.wikipedia.org/wiki/Three-valued_logic

    It may be defined either by appending one of the two equivalent axioms (¬q → p) → (((p → q) → p) → p) or equivalently p∨(¬q)∨(p → q) to the axioms of intuitionistic logic, or by explicit truth tables for its operations. In particular, conjunction and disjunction are the same as for Kleene's and Łukasiewicz's logic, while the ...

  8. Automated theorem proving - Wikipedia

    en.wikipedia.org/wiki/Automated_theorem_proving

    Depending on the underlying logic, the problem of deciding the validity of a formula varies from trivial to impossible. For the common case of propositional logic, the problem is decidable but co-NP-complete, and hence only exponential-time algorithms are believed to exist for general proof tasks.

  9. Truth-table reduction - Wikipedia

    en.wikipedia.org/wiki/Truth-table_reduction

    In contrast, a truth-table reduction or a weak truth-table reduction must present all of its (finitely many) oracle queries at the same time. In a truth-table reduction, the reduction also gives a boolean formula (a truth table) that, when given the answers to the queries, will produce the final answer of the reduction.