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In logic, an argumentum e contrario (Latin: 'argument from the contrary'; also a contrario or ex contrario [1]), also known as appeal from the contrary, denotes any proposition that is argued to be correct because it is not disproven by a certain case. It is the opposite of the analogy. When analogy is allowed, e contrario is forbidden and vice versa.[ citation needed] Arguments e contrario are often used in the legal system as a way to solve problems not currently covered by a certain system of laws. Although it might be used as a logical fallacy, arguments e contrario are not by definition fallacies.
In law, the use of the argumentum e contrario finds its footing in the Latin maxim: ubicumque lex voluit dixit, ubi tacuit noluit that runs as follows: If the Legislator wished to say something, he would do that expressly.
On the other hand, this example:
Novel legal cases often hinge on more cogent arguments of the form:
![]() | This article includes a list of general
references, but it lacks sufficient corresponding
inline citations. (April 2020) |
In logic, an argumentum e contrario (Latin: 'argument from the contrary'; also a contrario or ex contrario [1]), also known as appeal from the contrary, denotes any proposition that is argued to be correct because it is not disproven by a certain case. It is the opposite of the analogy. When analogy is allowed, e contrario is forbidden and vice versa.[ citation needed] Arguments e contrario are often used in the legal system as a way to solve problems not currently covered by a certain system of laws. Although it might be used as a logical fallacy, arguments e contrario are not by definition fallacies.
In law, the use of the argumentum e contrario finds its footing in the Latin maxim: ubicumque lex voluit dixit, ubi tacuit noluit that runs as follows: If the Legislator wished to say something, he would do that expressly.
On the other hand, this example:
Novel legal cases often hinge on more cogent arguments of the form: