Pic related is valid by modus tollendo tollens or by modus

Reminder that memorising phrases in a language you don't speak doesn't make you smart, it makes you a pseud

>>8930683
just came out from an exam, the question was literally that

Nigga, that's one of the most common logical fallacies. You can't conclude anything by denying p. You just memorized shit instead of understanding the material.

Modus ponens and modus tollens are basically the same by contraposition. Who cares it's valid.

>>8930708
https://en.m.wikipedia.org/wiki/Denying_the_antecedent
You are also retarded.

File: 2das.jpg (19KB, 298x160px) Image search: [Google]

19KB, 298x160px

>>8930712
>https://en.m.wikipedia.org/wiki/Denying_the_antecedent

then why it says its not a fallacy if i make the Truth table?

>>8930694
Neither?

https://en.wikipedia.org/wiki/Denying_the_antecedent

>>8930719
>v v -> f
>v v -> v
nigga

>>8930735
what

>>8930737
if at least one of those V-V=V then it's not a phalacy

>>8930673
Suppose q.
Remember that p implies q means (p or not q)
Then (p or not q) and (q)
But p is false and thus
(not q) and q
Which is a contradiction.
Thus, not q.

O -> P
is valid by modus succendo penis