The phrase "as an example of progressive" is correct and usable in written English.
It can be used when illustrating or demonstrating a concept, idea, or trend that is considered progressive in nature.
Example: "The new policy implemented by the company serves as an example of progressive thinking in the workplace."
Alternatives: "as a demonstration of progressive" or "as a case of progressive".
On the international stage, she is an example of progressive Britain, looking for opportunities to open up trade links with the emerging markets such as India, Pakistan and China.
Mr. Shaw cited the city's "Live Well Ferguson" program as an example of its progressive attitude toward healthy practices like gardening.
Powers pointed to Fort Carson near Colorado Springs as an example of a progressive project; Fort Carson has set a goal of becoming a net-zero energy, water and waste installation.
Setting forth a vision of Pakistan as an example of a tolerant and progressive form of Islam, General Musharraf plotted a daring course.
Take maternity rights: current EU law guarantees a paltry 14 weeks of maternity leave compared to the UK's minimum of 52, a fact oft-cited by EU critics as an example of the UK being way more progressive than its neighbours.
As an example of complex auditory signal processing, the analysis of accented speech is potentially vulnerable in the progressive aphasias.
Primary schools, in particular, stand as an example of what is possible when learning is undertaken under a different set of conditions, and with more progressive objectives.
Though certainly more progressive than some of its Middle Eastern neighbors, Egypt can also be seen as an example of an ill-equipped democracy.
As an example of the inherent dangers in these approaches, a clinical trial of Natalizumab (Tysabri) led to the deaths of several participants from progressive multifocal leukoencephalopathy, a viral infection of the brain.
The Nice, The Moody Blues, Procol Harum and Pink Floyd all contained elements of what is now called progressive rock, but none represented as complete an example of the genre as several bands that formed soon after.
