The phrase "a positive explanation" is correct and usable in written English.
It can be used when referring to an explanation that is optimistic or constructive in nature.
Example: "The teacher provided a positive explanation of the new concepts, which helped the students feel more confident in their understanding."
Alternatives: "an encouraging explanation" or "a constructive explanation".
However, this position still seems to call for a positive explanation of how synthetic philosophical knowledge might be established without a posteriori evidence, even if it is restricted to trained philosophers.
A more promising approach for the non-naturalist would be to offer a positive explanation of supervenience in explicitly non-naturalist terms.
When analyzing the importance of a good friendship to fellow-students separately it was given as a positive explanation in 15 cases, where 7 explanations was found in the 2nd semester, n3 in 3rd and 5th semester, n1 in the 1st and 4th semester and no one in the last semester.
(There is a more positive explanation for the legendary senior slump; midyear, seniors may already have a job or a graduate school berth lined up).
One possible positive explanation could be that the decision is based on a very careful consideration of the patient's individual needs and includes his or her personal wishes.
Many Nepalis seem ambivalent about kings in general; but almost all want to see the back of this one.There is, however, another, less positive, explanation for the public apathy about the monarchy's future.
But there's another, less positive explanation: People are afraid of what is referred to in the eBay community as "retaliatory feedback".
Then consider (realistic) reasons why the positive explanation must be correct.
The trick is to choose the most positive explanation and tell that to yourself (preferably out loud).
Another explanation might be that students with high motivation scores probably also have a higher level of self-efficacy and therefore easier find positive explanations and achieve good study results.
There are also positive explanations, including the sense that Mr. Obama inherited an economic mess and made things better.
