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Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

• CommentRowNumber1.
• CommentAuthorAndrew Stacey
• CommentTimeMar 23rd 2012

The statement at compact support was that $f^{-1}(0)$ should be compact. I’ve corrected this.

• CommentRowNumber2.
• CommentAuthorUrs
• CommentTimeMar 23rd 2012

Er, sorry. Not sure what happened there. Thanks for catching this.

• CommentRowNumber3.
• CommentAuthorTobyBartels
• CommentTimeMar 24th 2012

• CommentRowNumber4.
• CommentAuthorYaron
• CommentTimeMar 24th 2012

If I may ask, wouldn’t it be better to define “support of a function” (as done implicitly in compact support) and “compact” separately?

• CommentRowNumber5.
• CommentAuthorTobyBartels
• CommentTimeMar 24th 2012

Probably. The general notion is more complicated than one might expect; see Wikipedia. But we can put it in bit by bit as needed.