#### Help me out?

I’ve really started to notice when people use words co-opted from the mathematical jargon. So I’m making a list of mathematical words and phrases that people sometimes use in non-mathematical conversation:

- By definition
- QED (and the neologism “Quite Easily Done”)
- By parallel,…
- At right angles with
- Equilateral
- Trivial / nontrivial
- Without loss of generality,…
- As a corollary,…
- Continuous
- Map / project onto
- It follows that…
- If and only if
- Necessary and sufficient
- Parametrize
- Operates on
- Partition
- Double negative
- Tautology
- Equivalence
- By the transitive property (from liz011)
Soon we’ll all be speaking in propositional logic. Let us know if you have more, and we’ll add them! [CJH]