In Logic by Wifred Hodges he says
[..] you must rely on your common sense - as always in logical analysis.
So i'm confused (again!). What has common sense to do with logical reasoning? My previous understanding is that logical was an objective discipline. So it seems odd that the subjective and vague 'common sense' is in the logical mix. Certainly with the boolean logic of computer programming that I am more familiar with common sense has no role. Well I think it doesn't but then clearly logic isn't what I thought it was.
So what role does common sense play in logic? Does it really have an element of subjectivity?
Many thanks for any/all thoughts