Can one omit "Es ist" from "Es ist A=B?" in German like one can in English?

Question

Take the following sentence:

Lemma. Es ist A=B.

In English one could just write:

Lemma. A=B.

Does this also work in German?

Are you looking for an English translation? I think you should ask on the English stack exchange instead, as this does not need German expertise. Or do you have a different question? — infinitezero, Jun 21, 2022 at 18:13
So you just want to know what it means? Generally, if there is something in German which you do not understand, then it can be on-topic here. If you understand the German text and want to know what the best way is to say it in English, then it is usually off-topic here. — Carsten S, Jun 21, 2022 at 18:56
@infinitezero This would require that some user of English Stack exchange does understand German and has additionally a mathematical background. I think it is more likely that a user of German stack exchange has the required skills (German + English + mathematics). — Paul Frost, Jun 21, 2022 at 19:22

Paul Frost · Accepted Answer · 2022-06-22 07:11:13Z

1

You can omit "Es ist". The statement "A = B" has the same meaning. This is true both in German and in English.

answered Jun 21, 2022 at 19:16

Paul Frost

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1

Did you mean "Es ist" instead of "Es gilt"?
– RDBury
Jun 21, 2022 at 23:54
Oder: "Es sei A = B."
– user unknown
Jun 22, 2022 at 0:19
6

Es sei A=B ist etwas völlig anderes als es ist A=B.
– infinitezero
Jun 22, 2022 at 3:29
@RDBury Yes, I did not pay attention. But "es gilt" and "es ist" have the same meaning in the present context.
– Paul Frost
Jun 22, 2022 at 7:14
2

One can simply write A=B, but if the remaining text uses full sentences, it does not look good.
– RHa
Jun 22, 2022 at 9:45

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