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    Affirmative conclusion from negative premise


     
    Name of fallacy Affirmative conclusion from negative premise
    Aliases  
    Type Deductive Argument, Formal Argument
    Description When a categorical syllogism has a positive conclusion, but at least one negative premise.
    Example No fish are dogs
    and no dogs can fly
    therefore all fish can fly 
    Form 
    Treatment If one of the premises in a syllogism is negative then the conclusion must be negative. The fallacy can be dealt with by restating the conclusion.


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