From

[Allen165]

"From his demeanor, he probably forgot about raping her ten minutes after doing it."

How would you classify this usage of "from"? As informal English? Or as acceptable in formal English? It seems to be short for "based on."

Thanks!

[bhaisahab]

"From his demeanor, he probably forgot about raping her ten minutes after doing it."

How would you classify this usage of "from"? As informal English? Or as acceptable in formal English? It seems to be short for "based on."

Thanks!

Yes, it's used to mean "based on". I would say that it's fine in either formal or informal English.