A Fortiori

Business, Legal & Accounting Glossary

Definition: A Fortiori


Quick Summary of A Fortiori


(ah-for-she-ory) prep. Derived from Latin, meaning for a still stronger reason; all the more.



What is the dictionary definition of A Fortiori?

Dictionary Definition


(ah-for-she-ory) prep. Latin for “with even stronger reason,” which applies to a situation in which if one thing is true then it can be inferred that a second thing is even more certainly true. Thus, if Abel is too young to serve as administrator, then his younger brother Cain certainly is too young.


Full Definition of A Fortiori


Applies to a situation in which a second thing can be inferred to be true if the first thing is true. Therefore, if Abel is too young to serve as administrator, his younger brother Cain is definitely too young.

[Latin, With stronger reason.] This phrase is used in logic to denote an argument to the effect that because one ascertained fact exists, therefore another which is included in it or analogous to it and is less improbable, unusual, or surprising must also exist.


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Definition Sources


Definitions for A Fortiori are sourced/syndicated and enhanced from:

  • A Dictionary of Economics (Oxford Quick Reference)
  • Oxford Dictionary Of Accounting
  • Oxford Dictionary Of Business & Management

This glossary post was last updated: 26th April, 2020 | 10 Views.