In means you can map every element bijectively to one from the complex field AND addition and multiplication can be performed in either field without leading to contractions, i.e. a+b=c <=> f(a)+f(b)=f(a+b)=f(c) and equivalent for multiplication. This is the part that the meme fails to consider, because nowhere is addition or multiplication for this novel field defined.

Ok, everyone but me seems to get it, so I'll ask. I get everything but the last bit. What does "isomorphic with the complex field" mean? I think I know what isomorphic means from some dabbling I've done in category theory.
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