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... it needs two things: oxygen and fuel. Thus, to put out a fire, you must remove any one of these things.

Can you suggest some words to replace 'thus'? We can't use 'so' because grammatically, 'so' is not supposed to be used as the first word in a sentence. It should be used in cases like : ... , so...
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Therefore
Consequently
As a result
Hence
Ergo
Charlotte_TCan you suggest some words to replace 'thus'? We can't use 'so' because grammatically, 'so' is not supposed to be used as the first word in a sentence. It should be used in cases like : ... , so...

About the bolded sentence, is it really true that we cannot use 'so' as the first word in a sentence? My teachers have never told me about it...
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I think so... my teacher has reminded us for many times.
is it really true that we cannot use 'so' as the first word in a sentence?
It can be done very occasionally-- as an exception, it is sometimes effective in creating emphasis-- but is a bad habit for neophyte writers to develop. The same applies to the coordinate conjunctions and, but and or.
Hello everyone:),
Mister MicawberErgo
Ergo? How is it used? I mean, is it used in a formal way? Is it more formal than "hence"?

Thanks in advance!
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Yes, I suppose that 'ergo' is formal-- though I say it occasionally-- and about as formal as 'hence'. I see 'ergo' most in legal English, I think.
I agree with mister micawber, it is used in formal english. Most often I hear "ergo" from my professor in logic.

I'll try to use it in a sentence for you...

I am a Filipino. Filipinos are hospitable. Ergo, I am hospitable.
Thank you both, Mister Micawber and Intelligent Freak!:)

..but, what does "legal English" mean? The English used in documents? What about in a formal letter?
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