The phrase "and required so" is not correct and does not convey a clear meaning in written English.
It seems to be an incomplete thought or a fragment that lacks context for proper usage.
Example: "The committee decided that the changes were necessary and required so to ensure compliance."
Alternatives: "and deemed necessary" or "and mandated accordingly".
But the carbon-arc lamp was so bright and required so much power that it was never widely used and was rapidly superseded by the simultaneous invention of the carbon-filament bulb by Thomas Edison and Joseph Swan in 1879.
Aside from destroying biodiversity, tree plantations have dried up river catchments, caused soil erosion when the land is ploughed for planting (meaning loss of soil carbon), exhausted nutrients and required so many pesticides that the run-off has poisoned marine fisheries.
Because he couldn't see and required so much help, the opposite turned out to be true an office full of people helped him on a near-constant basis.
She then developed this rare immune disease where she became paralyzed from the waist down, and required so much attention, which kind of kept me and my ex together even longer.
She then developed this rare immune disease where she became paralysed from the waist down, and required so much attention, which kind of kept me and my ex together even longer.
Everyone grows up with phones that enable the taking of photos, an activity that's become second nature, to some degree mundane and required, so routinely entwined within the everyday that photography may not be able to retain any connection to magic.
But the technical level is so high and requires so much money that they face a difficult task.
"That makes it by definition easier to manage, because those issues are so big and require so much work".
We create elaborate systems that become convoluted and require so much energy to maintain that they are value detractors.
Colonoscopy is expensive, has risks for serious complications and requires so much time, equipment and expertise that its wide use for screening is impractical, if not impossible.
Indeed, such agreements take so long to negotiate and require so much political capital that presidents rarely achieve more than one.
