For example, my notes say, "Q (rationals) is a subﬁeld of R (reals). Z (integers) is not a subﬁeld of R. Any subﬁeld (together with the addition and multiplication) is again a ﬁeld".(adsbygoogle = window.adsbygoogle || []).push({});

This just doesn't make any sense to me.

Oops, this was suppose to be in the homework section - sorry.

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# What is the difference between a field a subfield

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