Legal Definitions - ex paritate rationis

Ex paritate rationis is a Latin term used in law. It means "by a parity of reasoning."

For example, if a court has made a ruling in a similar case, ex paritate rationis would suggest that the same ruling should be made in the current case, as the reasoning behind the ruling is the same.

Another example would be if a law applies to a certain situation, ex paritate rationis would suggest that the same law should apply to a similar situation, as the reasoning behind the law is the same.

Ex paritate rationis is used to suggest that similar situations should be treated in a similar way, based on the same reasoning. It is a way of applying consistency and fairness in legal decisions.