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searching for Propositional variable 10 found (335 total)

Resolution (logic) (4,063 words) [view diff] exact match in snippet view article

containing complementary literals. A literal is a propositional variable or the negation of a propositional variable. Two literals are said to be complements if

Recursive definition (1,585 words) [view diff] exact match in snippet view article find links to article

the smallest set satisfying the three rules: p is a wff if p is a propositional variable. ¬ p is a wff if p is a wff. (p • q) is a wff if p and q are wffs

Saul Kripke (6,542 words) [view diff] exact match in snippet view article find links to article

T has to be reflexive: fix w ∈ W, and define satisfaction of a propositional variable p as follows: u ⊩ p {\displaystyle u\Vdash p} if and only if w R u

Truth function (2,647 words) [view diff] exact match in snippet view article find links to article

\{T,F\}} . A truth assignment is therefore an association of each propositional variable with a particular truth value. This is effectively the same as a

Temporal logic (3,812 words) [view diff] exact match in snippet view article find links to article

∈ S {\displaystyle \tau \in S} and ϕ {\displaystyle \phi } is a propositional variable, then U τ ( ϕ ) ∈ F o r {\displaystyle U_{\tau }(\phi )\in For}

Implicational propositional calculus (3,081 words) [view diff] exact match in snippet view article find links to article

efficiently prove the subset of tautologies that contain only one propositional variable. aa 1: ꞈA→A aa 2: (A→B)→ꞈ(A→(C→B)) aa 3: A→((B→C)→ꞈ((A→B)→C)) aa

Paraconsistent logic (6,358 words) [view diff] exact match in snippet view article find links to article

weaken the logic so that Γ→X is no longer a tautology provided the propositional variable X does not appear in Γ. However, we do not want to weaken the logic

Philosophical logic (7,043 words) [view diff] exact match in snippet view article find links to article

principle. It states that antecedent and consequent have to share a propositional variable. This would be the case, for example, in " ( p ∧ q ) → q {\displaystyle

RecycleUnits (1,627 words) [view diff] exact match in snippet view article find links to article

called parents. If a node has two parents it is also labeled with a propositional variable called the pivot, which was used to compute the nodes clause using

Glossary of Principia Mathematica (1,102 words) [view diff] exact match in snippet view article find links to article

class. (The meaning of p changes here: before section 40 p is a propositional variable.) *40.01 s The union of the classes in a class *40.02 | | {\displaystyle