"in addition to demonstrating" is correct and usable in written English.
You can use it when you want to show that something has multiple purposes or connotations. For example, "This project not only challenged me to think creatively, but in addition to demonstrating my skills, it also helped me to develop my confidence."
The moon mission, in addition to demonstrating technological capacity, can potentially yield commercial gains for India's space program.
In addition to demonstrating the existence of these antigens in people, Dr. Dausset "elucidated the genetic factors regulating their formation," the Karolinska Institute said.
But in addition to demonstrating that they could step into the Oval Office if necessary, they both have important political tasks to carry out, particularly Pence.
In July, she halted her regular Wednesday appearances on "The Early Show" on CBS after network executives insisted that she address the investigation in addition to demonstrating how to prepare salads and perform other household tasks.
"In addition to demonstrating excellence in designing, building and selling consumer products, Apple has been very successful at minimizing its global income tax burden".
In addition to demonstrating that they have the right to foreclose, they are also being asked to certify the accuracy of documents outlining such things as amounts owed by a borrower.
These games, in addition to demonstrating some of the microcomputer's capabilities, helped to convince ordinary individuals, in particular small-business owners, that they could operate a computer.
In addition to demonstrating liquidity commonality, we also investigated the causal relationship between liquidity and volatility.
In addition to demonstrating detailed arterial anatomy, arteriography can usually distinguish between thrombosis and embolism [19].
In addition to demonstrating the latest technology improvements that can be implemented in a web app, it is still today a relevant task manager for individuals.
In addition to demonstrating how graphene makes it possible to produce previously unfeasible 2D-materials, ultra-thin glass could be used in semiconductor or graphene transistors.
