Prima facie is a Latin expression meaning "at first sight", or "based on first impression". The literal translation would be "at first face" or "at first appearance", from the feminine forms of primus ("first") and facies ("face"), both in the ablative case. In modern, colloquial, and conversational English, a common translation would be "on the face of it".
Example of a prima facie speed limit posted in Rapid River, Michigan
Evidence for a proposition is what supports the proposition. It is usually understood as an indication that the supported proposition is true. What role evidence plays and how it is conceived varies from field to field.
These contrails at an airshow provide evidence regarding the aircraft's flight path as well as the weather conditions.
The balance scales seen in depictions of Lady Justice can be seen as representing the weighing of evidence in a legal proceeding.
An FBI Evidence Response Team gathering evidence by dusting an area for fingerprints