It is a valid argument form in which: If it's not X, it's not Y. It's not Y. Therefore, it's not X. Example: If your school is not situated on Earth, it is not situated in America. Your school is not situated in America. Therefore, your school is not situated on Earth.
It means "Deny the Consequent" it is a logical argument that something may not be true even if there is apparent evidence for it; as truth may actually be something different.
modus ponens and modus tollens
Mudus Tollens = "the way that denies by denying"
If today is MONDAY then tomorrow is Tuesday.
method of removing is the latin phrase of modus tollen
first or consequent
It in Math, (Geometry) If p implies q is a true conditional statement and not q is true, then not p is true.
Bernhard Tollens was born on 1841-07-30.
Bernhard Tollens died on 1918-01-31.
Hendrik Tollens died on 1856-10-21.
Hendrik Tollens was born on 1780-09-24.
Modus - Modus album - was created on -19-03-02.
"Way of denying" is an English equivalent of the Latin phrase modus tollēns. The logic-related phrase most famously references the sequence of proposition, conditional and contrapositive whereby "All Uruguayans are Latin Americans," "If someone is Uruguayan, then she is Latin American" and "If someone is not Latin American, then she is not Uruguayan." The pronunciation will be "mo-doos tol-lenz" in Church Latin and in classical Latin.