Mike

Quoting from your own references:

>>If it is possible for all the premises to be true and the conclusion to still be false, then you have what is called an Invalid argument<<

Both premise and conclusion cannot be true in your argument. QED.

>>Thus, an argument is sound if and only if :
>>it is a valid argument, and
>>all the premises are true.

By contradicting the premise, your argument is both invalid and unsound.

Your second quote covers "Reductio ad Absurdum" which requires a much more rigorous, conditional progression from you if you wish to apply it. IOW your own assertion re the nature of omnipotence needs to be subject to the same rigor as you seek to apply. In its current form I can use Reductio ad Absurdum to demolish it immediately simply by challenging your assertion of what "omnipotence" means. E.g.: An omnipotent person both can and can't do whatever they like, that's the nature of omnipotence and we humble mortals can't expect to understand it. Prove me wrong. ;-)

Regards

JR