Atheism is irrational.

[BrianSoddingBoru4]

Whatever is rational utilizes either the senses, the intellect or both.

With you so far.

Atheism cannot deny God by using senses. For, to deny something by the use of senses is to search the whole physical reality, just as ruling out that there's no alien is to search all that is searchable which is impossible for us humans.

Rubbish. I deny that the core of the of the sun is made of chocolate custard. Why? Because it doesn't fit with supported theories and observed facts regarding the sun. There is no need to me to visit the sun in situ to defend my denial. Similarly, I don't need to search every little crook and nanny of the multiverse to maintain a sensible denial of God.

But God, by demonstration of His effects, shows that He is beyond physical reality. Hence, it is the more that God can't be denied by the senses.

Sorry, but you aren't allowed to prove God by way of pointing out that other things exist. The things you refer to as 'His effects' may have other explanations.

Atheism cannot deny God by the intellect. For, whatever we can deny by the use of our intellect, must be defined, just as we deny circle things as square, for the definition of circle is different from the definition of square. But, God can't be define, because if He has definition, He can't be God, because by demonstration of His existence through His effects, He is necessarily Boundless. Hence, God can't be denied by the intellect.

Ok, if I read this right (no warranties expressed or implied, as it's very close to gibberish), you're telling me that I can't deny God intellectually because God can't be defined. You then not only go on to define God as boundless, you make the unjustified claim that definition-less entities are to be accepted.

Therefore, if to be rational is able to use senses and our intellect, and that God can't be denied both by the senses and intellect, then atheism is necessarily irrational.

I only took two logic classes when I was at uni (back in the Bronze Age) but the upshot of both of them seemed to be, 'If your premises are bullshit, your conclusions with be bullshit.' Thank you for demonstrating the Bovine Excreta Principle.

Boru