proof / evidence
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proof / evidence
A document, piece of information, or object that proves that something is true, present, or correct. It serves as evidence or proof for a claim or entitlement.
Für die Bewerbung benötigen Sie einen Nachweis Ihrer Deutschkenntnisse.
For the application, you need proof of your German language skills.
detection
The scientific or technical determination that a particular substance or phenomenon is present. This is often done through measurements or tests.
Der Nachweis von Pestiziden im Trinkwasser war leider positiv.
The detection of pesticides in the drinking water was unfortunately positive.
The noun 'der Nachweis' (proof/evidence) derives directly from the verb 'nachweisen' (to prove/detect). This verb means 'beweisen' (to prove) or 'feststellen' (to determine) and consists of 'nach' and 'weisen' (to show). A 'Nachweis' is therefore the result when something has been successfully 'nachgewiesen' (proven/detected).
Der Forscher konnte die Wirkung des Medikaments eindeutig nachweisen.
The researcher was able to clearly prove the effect of the medication.
The preposition helps you recognize the meaning. 'Ein Nachweis für/über etwas' (proof of/about something) usually means evidence or a document. 'Der Nachweis von etwas' (the detection of something), on the other hand, often describes the scientific determination of a substance.
Sie braucht einen Nachweis für ihre Sprachkenntnisse.
She needs proof of her language skills.
In the sense of 'Beweis' (proof), 'Nachweis' is often combined with certain verbs. Typical phrases are 'einen Nachweis erbringen' (to provide proof), 'einen Nachweis vorlegen' (to present proof), or 'einen Nachweis fordern' (to require proof).
Für den Zuschuss müssen Sie einen finanziellen Nachweis erbringen.
For the grant, you must provide financial proof.
proof / evidence
Beweis and Nachweis both show that a claim or state of affairs is true. Beweis places more emphasis on conclusive or completed proof of the truth, while Nachweis is often evidence or information that must be submitted. Use Nachweis especially when something needs to be documented or presented.
Für die Anmeldung musste sie einen Nachweis über ihren Wohnort vorlegen.
She had to provide proof of her address when she registered.
Die wiederholten Messungen waren der Beweis für die Richtigkeit der Theorie.
The repeated measurements were proof that the theory was correct.
