The phrase "a progression and a" is grammatically correct and can be used in written English.
It can be used when discussing a sequence of events or developments that involve multiple elements or aspects.
Example: "The project involves a progression and a series of milestones that we need to achieve."
Alternatives: "an advancement and a" or "a development and a".
Rose blew the doors open on the conventional wisdom that stars need to go through a progression and a journey before they reach superstardom.
Edward Holland uses geometry, contrast, accents of color and collage to suggest both a progression and a panacea of two convergent spatial or compositional theories.
The result feels like both a progression and a departure for McQueen, a filmmaker known for the rigorous austerity of his images and the unblinking grimness of his stories.
… So that, you know, so that my decision wasn't needing to be [fingers snapping] made on the spot, it was a decision that was a progression and a process… Women who experienced transfer in emergency situations understood the need for staff to act quickly, but also appreciated clear explanations and information.
There should be a curriculum and a progression — and children should be placed based on their ability.
From there, the cell phone cases became a natural progression, and through a 2014 Kickstarter campaign became reality.
The majority of these long-term epilepsy-associated tumors do not show a malignant progression and reveal an unusual histological architecture with dysplastic neurons, neoplastic glial cell elements as well as low proliferation indices.
Others have suggested a role for CS-A in tumor progression and metastasis in a melanoma model [ 46].
But a period as a postdoc must be seen as one step in a career progression and not as a career in its own right.
It's often that Sam has a beat or a chord progression and then I write a vocal melody over it and some gibberish lyrics and we pass it back and forth.
The majority of them (47.7%) attained a partial response or tumour stabilisation (34.9%), whereas 5.4% had a tumour progression and 10.7% a complete response.
