The phrase "a first demonstration of" is correct and usable in written English.
It can be used when introducing an initial instance or example of something being shown or exhibited for the first time.
Example: "This paper presents a first demonstration of the new algorithm's effectiveness in real-world applications."
Alternatives: "an initial showcase of" or "a preliminary display of".
… Although we may never know what really happened, we do know that the story told in the Gospels is that Jesus' resurrection was a first demonstration of what I call the post-human universal person.
In a first demonstration of the group's ability to mobilise unhappy Yemenis, on August 18th at least 10,000 people flooded into Sana'a's "Change Square", a central square that was set up as a protest camp during the 2011 uprising that ousted the former president, Ali Abdullah al-Saleh.
A first demonstration of frequency tuning is also presented.
Finally, a first demonstration of dual integration of n-type and p-type VNW transistors for the realization of CMOS inverter is proposed.
As a first demonstration of the AMR capabilities in multi-scale simulations, we performed the magnetized-torus accretion test with and without AMR.
As a first demonstration of their potential value, D8-SBMC was utilised to further support a role for AJ18 during osteogenesis.
A third demonstration of CS+/US retention is rapid reacquisition, in which the CS+ and US are re-paired following extinction (Kehoe & Macrae, 1997).
A second demonstration of the failure of each of these major locus models to provide an adequate explanation of the patterns of inheritance of deafness is that the 95% HDR for the allele frequency includes the value 1.0.
This use of a QSPM in a regulatory meeting, however, is an important first demonstration of a QSPM extension beyond the research space, and lends a further element of credibility to the discipline.
Our current report shows that classic scrapie cases can occur in homozygous ARR sheep and suggests that even the former report may have been an imperfect first demonstration of such a case.
a The first demonstration of NIM by SRR array with metallic wires in microwave.
