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Discover LudwigThe phrase "proof in" can be used in written English
It is commonly used in legal contexts and means to provide evidence or justification for something. Example: The defendant's alibi was solidified with proof in the form of surveillance footage from the night of the crime.
Exact(58)
The proof, in other words, is in the numbers.
And ultimately proof, in fact, that it did not.
"Inelegant" describes a poorly constructed proof in mathematics.
She approached me once with a proof in her hand.
Proof – in any bewigged form – will probably only emerge much later: but proof, in a thumbs-up or -down way, is commodiously available already.
"Emma was gratified to observe such a proof in her of strengthened character".
The single greatest proof, in most people's eyes, was the invasion of Iraq.
As to the peony's long life, there is proof in the pudding.
The proof in the pudding will be how we react tomorrow.
"I'm living proof!" In early April this year, I called him to check in.
Hilarious proof in "Lost" is a line of dancers who stand still, hip thrust out.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com