Quranic way of presenting proofs for God's existence

Regardless of the view of those philosophers like Plantinga who see no need in any proof for the existence of God, scholars have presented four views on Quranic way of proving the existence of God including demonstration, awakening, implication and clear demonstration. Describing and criticizing the views in detail, the author has viewed differently. God has regarded the level of the addressee‘s awareness; for those of high degree of knowledge and action, His existence is known to be beyond proof, while for the others, He has introduced demonstrative way.