(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Determine whether or not the following definition of an ordered pair is set theoretic (i.e. you can distinguish between the "first" element and the "second" element using only set theory).

(x,y)={x,{y}}

2. Relevant equations

3. The attempt at a solution

I am inclined to think no, but can anyone explain the rationale for why it does not work?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Set theory and ordered pairs

**Physics Forums | Science Articles, Homework Help, Discussion**