Greetings,
I would advise that a muslim does not waste their time with philosophy at least until they have a solid understanding of the creed of their religion. (Read the ruling on philosophy
here). Philosophy does not lead one anywhere but instead it increases them in confusion and uncertainty, until the point where they even doubt if anything around them exists (solipsism)! This is why the majority of early scholars took a very strong stance against philosophy and they urged Muslims to stick to the Qur'an and the Sunnah. Imam Ghazali spent a period of his life in which he devoted himself to philosophy and went into much confusion and misguidance but later he recanted and called Muslims to the Qur'an and the Sunnah and warned them of the dangers of the incoherent nonsensical ramblings of philosophers.
Phew, Ansar, that's quite a merciless attack!
If the Islamic view is that people should learn about Islam first before moving on to philosophy, that's fair enough. In your post above, however, you give a very reductive account of philosophy as a whole, including some slightly misleading points.
For instance, not all philosophers are solipsists in practice. Although the idea of absolute solipsism is by its very nature irrefutable and non-falsifiable, the fact that we do not have certain knowledge about the existence of anything except our own minds does not massively alter the way we go about our daily lives (unless, of course, we are philosophers engaging with the problem).
Your point about Imam Ghazali is interesting. His journey between philosophy and faith is one of the most fascinating I have come across, and he is highly respected among Western philosophers, even though they do not really know what to make of his final dedication to Islam.
When you mention 'the incoherent nonsensical ramblings of philosophers', are those your words or his?
I'm not talking about just studying logic and learning logical fallacies and methods of proofs, etc. I mean studying works of philosophy on existence, God, predestination, and other Islamic beliefs.
I was going to bring up the point about logic, but you have already answered it. I'm glad that we can agree that the study of logic is very useful indeed. After all, without logicians, computers probably wouldn't have been invented by now, and we wouldn't be having this conversation!
On the other areas, the position seems to be 'these questions have already been answered, so there's no need for you to think about them.' It strikes me as being a shame that people are encouraged not to question these beliefs. Of course, according to Western philosophers, these questions have not been finally answered, so there is plenty of scope for fruitful discussion on them.
What about some of the other areas of philosophy, such as epistemology, phenomenology, aesthetics or philosophy of science? There are many concepts within these disciplines that are of crucial importance for the modern mind, and (perhaps due to my ignorance) I can't really see how knowledge of them is inimical to Islam.
Since you mention that philosophers dealing with questions of existence and god ought to be avoided by Muslims, I'd better retract all of my earlier recommendations except Whyte's
Bad Thoughts, since the other three all consider these questions. Descartes' account of them is the most famous, and it even includes his proof of the existence of god, although he accomplishes it through demonstrably specious means.
Peace