Atheists or agnostics state that there no evidence for the existence of Allah!
In epistemology, the knowledge is divided into "empirical" (acquired) and "intuitive" and the latter features infallibility. For example, our knowledge of ourselves is undeniable.
In Islamic philosophy, it is proved that the creatures' knowledge of the creator (Allah) is intuitive NOT empirical. However, this paper attempts to offer a practical solution for this conflict.
First, I would like to draw your attention to 1 Quranic verse as well as 2 narrations as follows:
We will show them Our sign