post hoc ergo propter hoc

== Latin == === Etymology === See post (“after”), propter (“because of”), hoc – neuter accusative of hic (“this”), and ergō (“therefore”). === Phrase === post hoc ergō propter hoc (logic) after this, therefore because of this ==== Usage notes ==== The logical fallacy that because something happens after something else, then the first event must be the cause of the second.