File:Venn1011.svg · Wikimedia Commons · See Wikimedia Commons
实质条件
Sign in to saveAlso known as implication, material consequence, simply implication, implies, conditional, material conditional, if-then, logical implication
数学概念
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
Wikidata facts
- Image
- Venn1011.svg
Show 3 more facts
- Unicode character
- ⟶
- TeX string
- \longrightarrow
- Commons category
- Material conditional
Sources (3)
via Wikidata · CC0
Article · 中文
在命题演算,或在数学的逻辑演算中,实质条件、實質蘊涵或蕴涵算子是一种二元的真值泛函的逻辑运算符,它有着如下形式: 若A,則B。 这裡的A和B是陈述变量(可以被语言中任何有意义的可表示的句子所替代)。在这种形式的陈述中,第一项这裡的A,叫做前件;第二项这裡的B,叫做后件。 这个算子使用右箭头“→”(有时用符号“⇒”或“⊃”)来符号化,其語義僅爲“如果A為真,那么B亦為真”。它的常見寫法見下: * * * 須注意的是,更常用於語意蘊含(等同符號)。這也是大多數初學者易搞混的點。
Abstract from DBpedia / Wikipedia · CC BY-SA
Connections
semantic theory of truth
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mathematical logic
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Boolean algebra
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binary operation
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proposition
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logical disjunction
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first-order logic
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formal system
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recursive set
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logical truth
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semantics of logic
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counterfactual conditional
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structure
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functional completeness
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ground expression
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diagram
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Galileo Galilei
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Q7186
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logic
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Bertrand Russell
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