home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.math
- Path: sparky!uunet!mcsun!ieunet!tcdcs!maths.tcd.ie!tim
- From: tim@maths.tcd.ie (Timothy Murphy)
- Subject: Re: Lebesgue integral (was: Couple of questions
- Message-ID: <1992Sep13.201010.1723@maths.tcd.ie>
- Organization: Dept. of Maths, Trinity College, Dublin, Ireland.
- References: <1992Sep9.174910.12677@galois.mit.edu> <18neu6INN32k@function.mps.ohio-state.edu> <1992Sep10.173619.24343@galois.mit.edu> <18q2s0INNmb5@function.mps.ohio-state.edu> <10712@sun13.scri.fsu.edu>
- Date: Sun, 13 Sep 1992 20:10:10 GMT
- Lines: 20
-
- I find the implication that Riemann integration
- is simpler than Lebesgue integration curious.
-
- Lebesgue defined the integral as the area under the curve.
- Since physicists and mathematicians all assume (at this level)
- that "area" is a well-defined concept,
- Lebesgue's definition is trivial, compared with Riemann's.
- And if you want to be more rigorous,
- you will have to define area anyway,
- so the L-integral still retains its advantage.
-
- The Riemann integral is of historic interest only.
- Its continuing survival in mathematical education
- is a monument to the conservatism of mathematicians.
-
- --
- Timothy Murphy
- e-mail: tim@maths.tcd.ie
- tel: +353-1-2842366
- s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
-