>>> Dear all:
>>>
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>
> Interesting... What grammatical rule would it break?
"Therefor" and "thereof" are both very old-fashioned - indeed obsolete
in modern English - they sound very 16th century along with other
obsolete forms such as "thou", "thee", "thy" and "thine", "hath",
"hast", "he cometh not" etc.
While "therefor" could - at a push - be considered grammatically correct
because it's based on the preposition "for" (as in "reason for"),
"thereof" is definitely incorrect because "of" isn't the preposition
that goes with "reason" in modern English.
Regards, Einde O'Callaghan
John - 25 Aug 2011 21:45 GMT
>>>> Dear all:
>>>>
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> "thereof" is definitely incorrect because "of" isn't the preposition
> that goes with "reason" in modern English.
Great, thank you! Now how about "the reason why" vs. "the reason for
this" vs. "the reason for that", i.e.:
3. If X failed to prove that a formula in Y is valid, the reason why was
not visible.
4. If X failed to prove that a formula in Y is valid, the reason for
this was not visible.
5. If X failed to prove that a formula in Y is valid, the reason for
that was not visible.
John.
Einde O'Callaghan - 25 Aug 2011 22:02 GMT
>>>>> Dear all:
>>>>>
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> 5. If X failed to prove that a formula in Y is valid, the reason for
> that was not visible.
All of them sound OK to me. To a great extent whether you use "this" or
"that" would depend on the context.
Regards, Einde O'Callaghan
John - 25 Aug 2011 22:27 GMT
>> 3. If X failed to prove that a formula in Y is valid, the reason why was
>> not visible.
[quoted text clipped - 5 lines]
> All of them sound OK to me. To a great extent whether you use "this" or
> "that" would depend on the context.
I see. Wonderful, thanks!
John.