both - and; either - or. Take your pick. Forgive other punctuation and syntactic errors and omissions; the cause of which, I assure you, was haste.

What a bunch of purist nonsense! Check your dictionary, thus can either be used in the manner you state and as a synonym for therefore. Therefore, thus and hence, it can be used in the same manner therefore is used, and, indeed, in its stead.

Also it's thus, not thusly, as healyjake incorrectly corrected you.