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0

Though it isn't a real equivalent to handwavy I think in some cases you might be able to use the expression über den Daumen gepeilt.


5

Depending on the nature of the handwaving, one of the following may fit: Ein salopper Beweis – It’s what I prefer to use in such a situation, though I usually apply it to certain steps of a proof and not the proof as a whole. It particular fits proof that omit technical details and apply to intuition, visualisation or examples. Ein formloser Beweis – A ...


1

I have seen the adjective hemdsärmelig used in this case.


5

When I was studying maths at university, "Beweis durch Händewedeln" was in use, but that describes a very very vague "proof" in the sense of "it can be easily seen that theorem 1.2 applies together with lemma 2.3, and the details are left as an exercise for the reader". For "proofs" the appeal to intuition or common sense, I'd use "Beweis durch Anschauung" ...


8

There seems to be no equally used German counterpart as I have often heard (and used) the English “hand waving” while conversing about mathematics in German.


12

In most cases in physics, act on sth. is translated by auf etw. wirken. So the phrase is: Der Impulsoperator p wirkt auf das Ket |ψ>. For example, in this Wikipedia article you can read: In der Impulsdarstellung wirkt der Impulsoperator multiplikativ auf Impulswellenfunktionen [...]. Another possible construction I can think of is auf etw. ...



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