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Latin logical phrases

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ad hominem
fallacious argumentative strategy that avoids genuine discussion of the topic by instead attacking the character, motive etc. of the person(s) associated with the argument
Q.E.D.
Q.E.D. or QED is an initialism of the Latin phrase , meaning "that which was to be demonstrated". Literally, it states "what was to be shown". Traditionally, the abbreviation is placed at the end of mathematical proofs and philosophical arguments in print publications, to indicate that the proof or the argument is complete.
post hoc ergo propter hoc
informal fallacy
reductio ad absurdum
form of argument in informal logic
argumentum ad populum
fallacy of claiming that a proposition must be true because many or most people believe it
ceteris paribus
Latin phrase indicating that factors not being considered in a comparison are held to be constant across the items compared
tu quoque
fallacy regarding hypocrisy
argumentum ad baculum
threat of force to make a conclusion accepted
ad nauseam
discussion that has continued to the point of nausea
modus ponens
if X implies Y, and X is true, then Y is true
modus tollens
if X implies Y, and Y isn't true, then neither is X
mutatis mutandis
Medieval Latin phrase
Argumentum ad lazarum
informal fallacy linking wisdom to poverty
Argumentum a fortiori
argument from a yet stronger reason
Ipse dixit
assertion without proof
Ipso facto
Latin term of art used especially in philosophy, law, and science
Argumentum ad crumenam
Informal fallacy linking wisdom to wealth, income and success
Ad infinitum
Latin phrase
prima facie
Latin expression meaning on its first encounter or at first sight
argumentum a contrario
Contradictio in adjecto
modus ponendo tollens
if X and Y can't both be true, and X is true, then Y isn't true
ipso jure
Latin phrase
de dicto and de re
phrase
Contra principia negantem non est disputandum
Latin phrase
argumentum ad personam
attacking an opponent's inherent identity rather than their arguments
consequentia mirabilis
theorem
Ergo decedo
Logical fallacy
Non sequitur
Wikimedia disambiguation page
a dicto simpliciter
type of informal fallacy that occurs when the arguer fails to recognize the difference between rules of thumb and categorical propositions
Ignotum per ignotius
unhelpful explanation due to its unfamiliarity