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| logic:inferences:modus_darii:modus_datisi [25.05.22, 21:59:19] – ↷ Links adapted because of a move operation admin | logic:inferences:modus_darii:modus_datisi [07.03.24, 23:03:22] (current) – [Modus Datisi] Fixed an error in the example (thanks to D.M.) sascha |
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| ====== Modus Datisi ====== | ====== Modus Datisi ====== |
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| Form of a [[glossary:syllogism|syllogism]] based on the [[logic:inferences:modus_darii:index|Modus Darii]], in which an affirmative [[logic:glossary:existential_quantification|existential]] proposition is inferred from affirmative //existential// and [[glossary:universal_quantification|universal]] premisses. | Form of a [[glossary:syllogism|syllogism]] based on the [[logic:inferences:modus_darii:index|Modus Darii]], in which an affirmative [[glossary:existential_quantification|existential]] proposition is inferred from affirmative //existential// and [[glossary:universal_quantification|universal]] premisses. |
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| <html><aside><figure><h3>Modus Datisi</h3></html>{{modus_datisi.svg?nolink|Modus Datisi}}<html><figcaption><a href="/app/syllogism-finder/index_en.html#AI3I">Type <code>AII</code>, Figure <code>3</code></a><br /></html>Parent: [[logic:inferences:modus_darii:index|Darii]]<html></figcaption></figure></aside></html> | <aside float-right> |
| | <figure> |
| | <h3>Modus Datisi</h3> |
| | {{modus_datisi.svg?nolink|Modus Datisi}} |
| | <figcaption>Type ''AII'', Figure ''3''<span noprint> [[app>#AI3I|Modus Datisi]]</span> \\ Parent: [[logic:inferences:modus_darii:index|Darii]]</figcaption> |
| | </figure> |
| | </aside> |
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| > <html><table class="layout"><tbody><tr><td>All <abbr title="middle term">M</abbr> are <abbr title="major term">P</abbr>.</td></tr> | > All <abbr title="middle term">M</abbr> are <abbr title="major term">P</abbr>. |
| <tr><td>Some <abbr title="middle term">M</abbr> are <abbr title="minor term">S</abbr>.</td></tr> | > Some <abbr title="middle term">M</abbr> are <abbr title="minor term">S</abbr>. |
| <tr><td><hr /></td></tr> | > <span conclusio>Therefore, Some <abbr title="minor term">S</abbr> are <abbr title="major term">P</abbr>.</span> |
| <tr><td><span title="Therefore">∴</span> Some <abbr title="minor term">S</abbr> are <abbr title="major term">P</abbr>.</td></tr></tbody></table></html> | |
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| For example: | For example: |
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| > <html><table class="layout"><tbody><tr><td>All <i>rectangles</i> are <i>polygons</i>.</td></tr> | > All <var>rectangles</var> are <var>polygons</var>. |
| <tr><td>Some <i>rectangles</i> are <i>squares</i>.</td></tr> | > Some <var>rectangles</var> are <var>squares</var>. |
| <tr><td><hr /></td></tr> | > <span conclusio>Therefore, Some <var>squares</var> are <var>polygons</var>.</span> |
| <tr><td><span title="Therefore">∴</span> Some <i>polygons</i> are <i>squares</i>.</td></tr></tbody></table></html> | |
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| //Modus Datisi// is very similar to [[logic:inferences:modus_darii:index|Modus Darii]], the only difference being that the terms in the //minor// statement are reversed. | //Modus Datisi// is very similar to [[logic:inferences:modus_darii:index|Modus Darii]], the only difference being that the terms in the //minor// statement are reversed. |
| ===== Name ===== | ===== Name ===== |
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| The name "Datisi" is a [[wp>Mnemonic|mnemonic]] term that helps to remember the most important characteristics of this mode: The "D" at the beginning indicates that it is related to the [[logic:inferences:modus_darii:index|Modus Darii]], the "a" and the two "i" indicate the affirmative [[glossary:universal_quantification|universal]] and [[logic:glossary:existential_quantification|existential]] statements that make up this form. | The name "Datisi" is a [[wp>Mnemonic|mnemonic]] term that helps to remember the most important characteristics of this mode: The "D" at the beginning indicates that it is related to the [[logic:inferences:modus_darii:index|Modus Darii]], the "a" and the two "i" indicate the affirmative [[glossary:universal_quantification|universal]] and [[glossary:existential_quantification|existential]] statements that make up this form. |
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| ===== See also ===== | ===== See also ===== |
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| * [[logic:glossary:existential_quantification|Existential Quantification]] | * [[glossary:existential_quantification|Existential Quantification]] |
| * [[logic:inferences:modus_darii:index|Modus Darii]] | * [[logic:inferences:modus_darii:index|Modus Darii]] |
| * [[glossary:syllogism|Syllogism]] | * [[glossary:syllogism|Syllogism]] |
