Do I need the second comma in the following sentence:
Он явил, т.е. доказал, тот факт, что Земля вращается вокруг Солнца.
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Do I need the second comma in the following sentence:
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You need both commas. Rosenthal et al., Справочник по правописанию, произношению и литературному редактированию: §97. Пояснительные члены предложения.
Here, the word доказал clarifies the meaning of quite archaic word явил. Тот факт is an object to both verbs and hence is not a part of the clarification. If you had a sentence like this:
you would need one comma less, since со всей ясностью would be a part of the clarification, and the commas separating the clafication and the dependent clause would merge. |
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In the sentence ‘Он явил, т.е. доказал, тот факт, что Земля вращается вокруг Солнца’ you don’t need second comma, because тот факт is a complement to доказал, i.e. доказал (что именно?) тот факт, что…. The phrase ‘т. е. доказал тот факт’ is a clarification to first verb. BTW the sentence is semantically poor. Here you use verb ‘являть’, but the construction is too complicated to use it, compare to явить миру чудо, явление Христа народу, Наконец появился свежий номер [журнала] — the thing you являешь is always closely bound to verb. Moreover, ‘являть’ should be used when they talk about some fairy tales or developments hardly appearing in real life. But your sentence is related to science, and has narrative tone, so there is more applicable another verb — just открывать. Он открыл миру, что… will make an impression you want. In that case открывать will mean ‘invent something’, ‘giving the people a knowledge of something they did not knew’. However, if you want to increase the impression, you would use something like ‘Он первым доказал, и тем самым открыл миру, что Земля вращается вокруг Солнца.’ |
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Both are possible. I personally would omit the comma:
This makes it sort of poetic (with an explanation for non-poetic people in parentheses). (I only added parentheses to visually separate the resulting logical pieces; you don't have to actually use them.) With a comma, it is also acceptable, but then you're saying |
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