Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun philosophy, logic A
valid form ofargument in which theconsequent of aconditional proposition isdenied , thusimplying the denial of theantecedent . Modus tollens has this form:
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From modus tollendō tollēns ("the mode where the denying denies"), from modus ("mode") and forms of tollō ("I deny").
Support
Help support Wordnik (and make this page ad-free) by adopting the word modus tollens.
Examples
Sorry, no example sentences found.
garyth123 commented on the word modus tollens
If A, then B.
Not B.
Therefore, not A.
December 8, 2008