2isirrationalProofbycontradictionSupposecisrationalIfcp 2isalsorationalthensincerationalnumbersareclosedundersubtractioncp 2cp 2isrationalButweveshownp 2isirrationalacontradictionContinu ID: 186477
2isirrational.Proofbycontradiction.Supposecisrational.Ifc+p 2isalsorational