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material implication

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EntityQ7881229· pop 46· linked from 478 articles

material implication

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Also known as implication, material consequence, simply implication, implies, conditional, material conditional, if-then, logical implication

logical connective between two assertions, frequently symbolized by a (most often double) arrow to the right

Key facts

Definition
x → y {\displaystyle x\to y}
Truth table
( 1011 ) {\displaystyle (1011)}
Disjunctive
x ¯ + y {\displaystyle {\overline {x}}+y}
Conjunctive
x ¯ + y {\displaystyle {\overline {x}}+y}
Zhegalkin polynomial
1 ⊕ x ⊕ x y {\displaystyle 1\oplus x\oplus xy}
0 preserving
no
1 preserving
yes
Monotone
no
Affine
no
Self dual
no

via Wikipedia infobox

~17 min read

Encyclopedic overview

Related concepts

Propositional calculus Predicate logic Boolean algebra Truth table Truth function Boolean function Functional completeness Scope (logic)

Excerpted from Wikipedia’s “material implication” article, available under the CC BY-SA 4.0 licence.