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Statements

Subject Item
dbr:Validity_(logic)
rdfs:label
Validity (logic)
rdfs:comment
In logic, specifically in deductive reasoning, an argument is valid if and only if it takes a form that makes it impossible for the premises to be true and the conclusion nevertheless to be false. It is not required for a valid argument to have premises that are actually true, but to have premises that, if they were true, would guarantee the truth of the argument's conclusion. Valid arguments must be clearly expressed by means of sentences called well-formed formulas (also called wffs or simply formulas).
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dbt:Main dbt:Portal dbt:! dbt:Use_American_English dbt:Logic dbt:Mathematical_logic dbt:Other_uses dbt:Sisterprojectlinks dbt:Reflist dbt:Short_description dbt:* dbt:Use_mdy_dates
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dbc:Deductive_reasoning dbc:Logical_truth dbc:Arguments dbc:Concepts_in_logic
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n10:Validity_(logic)?oldid=1074117627&ns=0
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dbo:abstract
In logic, specifically in deductive reasoning, an argument is valid if and only if it takes a form that makes it impossible for the premises to be true and the conclusion nevertheless to be false. It is not required for a valid argument to have premises that are actually true, but to have premises that, if they were true, would guarantee the truth of the argument's conclusion. Valid arguments must be clearly expressed by means of sentences called well-formed formulas (also called wffs or simply formulas). The validity of an argument can be tested, proved or disproved, and depends on its logical form.
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n10:Validity_(logic)