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1.4 How to boost your social status by sporadically using Latin phrases?

A few common expressions in academia to know, thank me later!

Latin Phrase Abbreviation Meaning
exempli gratia e.g For example
ergo Therefore
et cetera etc. So forth
inter alia i.a. Among other things
id est i.e. That is
quod erat demonstrandum Q.E.D. Which was to be demonstrated
erratum Error
ex hypothesi By hypothesis
a priori Before any experimental input
a posteriori After empirical input
cogito ergo sum I think therefore I am
ipso facto By the fact itself
reductio ad absurdum Argumentation type1
argumentum ad hominem ad hominem Attacking the person instead of argument
ad infinitum Without an end

1The methodology of Reductio ad absurdum is to prove a given statement by assuming that it is false and then finding an absurd result, which then concludes that initial statement has to be true.