As Cantor acknowledged and Craig developed, a completed actual infinite in the physical world generates contradictions, such as Hilbert's Hotel paradoxes applied to real subtraction.
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A thought experiment showing that a hotel with infinite rooms behaves in strange, impossible ways—like fitting infinitely many new guests in a fully booked hotel.
Real subtraction(as contrasted with abstract mathematical operations)
The idea of actually removing or taking away things from a collection, as opposed to just theoretically imagining it.
contradictions(as something Descartes thought God could have made true)
Two statements that cannot both be true at the same time, like 'it is raining' and 'it is not raining' happening together.
knowledge(Distinguished from mere true belief, which may be the product of indoctrination and need not exercise deliberative capacities.)
Justified true belief — true belief that has been arrived at through the exercise of deliberative capacities, including comparison of and deliberation among alternatives.