Difference between revisions 33437 and 33441 on crwiki{{delete}} <b>Reason:</b> This page is not written in Cree but in Japanese. Moreover, this page is deleted twice in Japanese Wikipedia (see [[:ja:Wikipedia:削除依頼/排他的論理積]] and [[:ja:Wikipedia:削除依頼/排他的論理積およびXAND]]) as a HOAX, and also deleted speedy in Irish and Chinese Wikipedia (see [[:ga:排他的論理積]] and [[:zh:排他的論理積]]).⏎ ⏎ ⏎ ⏎ '''排他的論理積'''(はいたてきろんりせき)、または、'''XAND'''(エクサンド)とは、2つの[[:w:ja:命題|命題]]が共に[[:w:ja:真|真]]または[[:w:ja:偽|偽]]のときにいずれも偽となる[[:w:ja;論理演算|論理演算]]である <ref>[https://www.physicsforums.com/threads/xand-gate.834493/ XAND_gate?-Physics_Forums-The_Fusion_of_Science_and_Community] 2015年9月25日 Physics_Forums</ref>。 == 表記法 == [[:w:ja:演算子|演算子]]は、XAND、xand、⦿ と書くことが多く、[[:w:ja:論理回路|論理回路]]などでは、 ⦿ を使用して ''A'' ⦿ ''B'' のように書くことが多い。 == 真理値表 == {|class="wikitable" style="text-align:center" !命題 ''P''!!命題 ''Q''!!''P'' ⦿ ''Q'' |- |真||真||'''偽''' |- |真||偽||'''偽''' |- |偽||真||'''偽''' |- |偽||偽||'''偽''' |} == 性質 == 排他的論理積は、[[:w:ja:排他的論理和|排他的論理和]]と[[:w:ja:論理積|論理積]]を用いて表すことができる。 : <math>(P \oplus Q) \land (P \land Q) = P</math> ⦿ <math>Q</math> ==== [[:w:ja:XOR|XOR]] との比較 ==== : <math>P</math> ⦿ <math>Q = (P \land Q) \land \lnot (P \land Q)</math> :<math>P \oplus Q = (P \lor Q) \land \lnot (P \land Q)</math> *[[:w:ja:論理積|AND]] のケースから、 ''P'' ∧ ''Q'' を除外(exclude)すると、常に偽である<ref>[https://www.quora.com/Why-dont-we-have-any-logic-gate-named-XAND-and-XNAND Why-dont-we-have-any-logic-gate-named-XAND-and-XNAND] Quora 2018年1月12日閲覧 <small>"So what would XAND mean? What does it mean to exclude a case from AND? There is only one case where AND is true, so if you exclude a case from AND, you are left with F, which already exists."</small></ref>。 == 関連項目 == *[[:w:ja:真理値|真理値]] *[[:w:ja:真理値表|真理値表]] *[[:w:ja:ブール代数|ブール代数]] *[[:w:ja:ブール論理|ブール論理]] *[[:w:ja:ブール関数|ブール関数]] *[[:w:ja:ベン図|ベン図]] *[[:w:ja:対称差|対称差]] *[[:w:ja:選言三段論法|選言三段論法]] *[[:w:ja:選言肯定|選言肯定]]*[[:w:ja:マスク (情報工学)|マスク (情報工学)]] *[[wikt:en:XAND|XAND]] == 脚注 == All content in the above text box is licensed under the Creative Commons Attribution-ShareAlike license Version 4 and was originally sourced from https://cr.wikipedia.org/w/index.php?diff=prev&oldid=33441.
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