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Hi there I have this theorem about sub-spaces...I took it as an arbitrary theorem:

If W is a subset of one or more vectors from a vector space V, then W is a subspace of V if and only if the following conditions hold:

a) if u,v is an element of W, then (u + v) is an element of W

b) if u is an element of W and k is a scalar, then ku is an element of W

Now I want to translate this theorem into symbolic logic...my first attempt is as follows:

Let:

p: W is a subset of one or more vectors from a vector space V.

q: W is a sub-space of V

a and b will represent the conditions mentioned with their corresponding letters as variables.

My translation:

(p => q) <=> (a ^ b)

In the back of my mind though, I am thinking about why the translation can't be this:

p => [q <=> (a^b)]

Can someone please help with this? I need to know how the order of precedence works when translating from English to symbolic logic...like how would a comma before if and only if make a difference?

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    The second one in the correct one.2017-02-07
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    We have that: "if ($W \text { subset } V$), then (($W \text { subspace } V)$ **iff** (conditions a **and** b holds))".2017-02-07

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