The phrase "automatic presumption" is correct and usable in written English.
It can be used in contexts where an assumption is made without requiring evidence or proof, often in legal or formal discussions.
Example: "In many legal systems, there is an automatic presumption of innocence until proven guilty."
Alternatives: "default assumption" or "inherent presumption".
I have an automatic presumption of innocence in his case".
"They hate losing taxpayers," said Mr. Starler, who added that spending nine months a year here created an automatic presumption that California was home.
There seems to be an automatic presumption that non-EEA migration provides the health and care sector with a 'get out of jail free' card".
"And if the agency that there has been an overcharge, there is an automatic presumption that the overcharge was willful, so the landlord then has the additional burden of proving that it was not.
And offering us, also, a model of conflict resolution: war can be avoided if the weaker side decides to persist in its dignity and its resistance, conquering its fear - but only if the other side, the more apparently powerful one, banishes its automatic presumption of superiority, daring to allow itself to be challenged.
If this becomes the norm in a community it would not mean an automatic presumption of guilt because it would not be so exceptional.
"A clear organic/biologic diagnosis disarms the sometimes automatic, but inaccurate, presumptions about laziness, personality, or lack of willpower".
In a letter to The Times (pdf), a "law-abiding citizen" wrote that he objected to the "automatic establishment of a presumption of felonious intent by the proposed law on the part of a citizen possessed of arms for home defense.
Lucas's amendment does make provision… The presumption (of having an automatic license) may be rebutted by explicit evidence that such a licence was not granted.
Summing up his findings for the British Medical journal in 1894, he robustly dismantled the spiritualist presumption that spirits were the cause of automatic writing by stating bluntly "there is no need nor room for the agency of spirits, and the invocation of such agency is the sign of a mind not merely unscientific, but uninformed".
The presumption of the program that the particle shape is close to circular made the automatic identification of the whiskers impossible, as shown in Fig. 5a.
