Clarification on set of assigned homework problems

Thread starter nicnicman
Start date Jan 24, 2013
Tags

Homework Homework problems Set

AI Thread Summary

The instructor assigned homework problems using the notation 4n + 1, where N represents natural numbers. This indicates that students should complete problems 5, 9, 13, and so on, following the sequence of every fourth number starting from 1. Clarification suggests that the assignment is indeed to solve every other odd-numbered problem. The discussion confirms the interpretation of the assignment as correct. Understanding this notation is crucial for completing the homework accurately.

Jan 24, 2013

nicnicman

Hello everyone,

For homework my instructor assigned problem from the book. To show which problems to do she wrote this: 4n + 1 N={1, 2, 3...}. Does this mean problems 5, 9, 13, . . . ?

Thanks for any suggestions.

Physics news on Phys.org

Jan 24, 2013

nicnicman

Yeah, now that I look at the problem again I think she just wants us to do every other odd.

Thread 'Deductive proof in logic formal systems'

I was reading documentation about the soundness and completeness of logic formal systems. Consider the following $$\vdash_S \phi$$ where ##S## is the proof-system making part the formal system and ##\phi## is a wff (well formed formula) of the formal language. Note the blank on left of the turnstile symbol ##\vdash_S##, as far as I can tell it actually represents the empty set. So what does it mean ? I guess it actually means ##\phi## is a theorem of the formal system, i.e. there is a...

View full post »