Sups and Sandwiches

[pteromys]

The phrase of the night: "Analysis is about sups and sandwiches."

This post isn't about analysis, though. It's about math words. Today I want to draw your attention to the words "algebra", "field", and "exact".

Comments

[darkerline]

There's also "normal". Oh man, is there ever "normal".

[oxeador]

Here, at least, you can connect "normal extension" with "normal subgroup", although "normal topological space" is different.

[pteromys]

Particularly amusing to me are "normal" and "normalized" as used to describe vectors--especially when both are relevant (e.g. in lighting methods for 3-D graphics).

[limitedcake]

Also, synonyms in English which are actually synonyms in math (where synonym = describing the same sketchy concept but different in the details). See "normal" and "regular" ...