so i'm writing my undergraduate project and have defined something
"bla bla bla if there exists an isometry of the spacetime metric that takes p into q"
now i don't define what an isometry is until much later. is it acceptable to write something like
"bla bla bla if there exists an isometry (see Definition 4.5) of the spacetime metric that takes p into q"
where defn 4.5 is like 25 pages later???
x Turn on thread page Beta
Mathematical writing watch
- Thread Starter
- 30-01-2010 21:15
- 30-01-2010 21:31
Well, one wonders why you are making reference to an isometry many pages before it is defined!
- 30-01-2010 22:49
I'd imagine it's ok to omit the definition if you're writing part of the abstract, otherwise ^^^
Offline19ReputationRep:TSR Group Staff
- TSR Group Staff
- 30-01-2010 22:55
You should define the concept before it's used, possibly refer back to it when you're in the later parts of the paper and actually using it properly instead of a one-off.
- 30-01-2010 23:12
The definition of an isometry is crucial to the point that you're making, so you definitely need to have defined it beforehand.
If it was a minor technicality that wasn't important, but you were just including it for completeness, then you could just say something like: *important bit here* assuming that *minor technicality here*; this will be covered in greater detail in section blah blah