The phrase "assert both" is correct and usable in written English.
You can use it when you want to state or declare two things simultaneously or emphasize the validity of two separate points.
Example: "In her argument, she aimed to assert both the importance of education and the need for reform in the system."
Alternatives: "claim both" or "declare both".
We assert both the right to consume – whatever we want, however we want – and the right to forget the consequences.
Well, plenty are dashing on to radio and TV to assert both options with glib over-confidence.
The philosophies of transcendence and immanence (bhedabheda) assert both identity and difference between the world and finite individuals on the one hand and brahman on the other.
It also brings forward a theme -- the need of sons to assert both their kinship to and their differences from their fathers -- that has run through Canin's work from the beginning.
Concerning the idea that the proponents of the design arguments assert both F and ~F: This is an extension of Ikeda and Jefferys's previously mentioned error of mistaking the fine-tuning assertion to be "F", when it is actually "P(F|N) << 1".
The main schools are: Shankara's unqualified nondualism (shuddhadvaita); Ramanuja's qualified nondualism (vishishtadvaita); Madhva's dualism (dvaita); Bhaskara's doctrine of identity and difference (bhedabheda); and the schools of Nimbarka and Vallabha, which assert both identity and difference though with different emphasis on either of the two aspects.
Put politely, the stories did not meet the "requisite" risk of substantial prejudice, asserted both newspapers.
Asserting both statutory and constitutional rights of access to the information and proceedings needed for meaningful public oversight of our nation's security policies and actions.
And neither right would mean much without publicly subsidised courts where they could be asserted, both against others and the government.
The government asserted both arguments in the 2010 case, and the judge who dismissed that lawsuit also cited the "political question" doctrine.
When that has been done, it is possible that nothing will be left of appellant's claim, asserted both in that proceeding and in this cause, concerning which it will have basis for complaint.
