File:Square of opposition, set diagrams.svg
Summary
<a href="https://en.wikipedia.org/wiki/Square_of_opposition" class="extiw" title="w:Square of opposition">Square of opposition</a>
In the <a href="https://en.wikipedia.org/wiki/Venn_diagram" class="extiw" title="w:Venn diagram">Venn diagrams</a> black areas tell, that the area is <a href="https://en.wikipedia.org/wiki/empty_set" class="extiw" title="w:empty set">empty</a> and red areas tell, that there is at least one element.
Faded red areas and fades arrows apply only in classical logic, where only non<a href="https://en.wikipedia.org/wiki/empty_domain" class="extiw" title="w:empty domain">empty domains</a> are used.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:17, 3 January 2017 | | 479 × 620 (143 KB) | 127.0.0.1 (talk) | <p><a href="https://en.wikipedia.org/wiki/Square_of_opposition" class="extiw" title="w:Square of opposition">Square of opposition</a> </p> <p>In the <a href="https://en.wikipedia.org/wiki/Venn_diagram" class="extiw" title="w:Venn diagram">Venn diagrams</a> black areas tell, that the area is <a href="https://en.wikipedia.org/wiki/empty_set" class="extiw" title="w:empty set">empty</a> and red areas tell, that there is at least one element. </p> <p>Faded red areas and fades arrows apply only in classical logic, where only non<a href="https://en.wikipedia.org/wiki/empty_domain" class="extiw" title="w:empty domain">empty domains</a> are used. </p> |
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