Science and Education Publishing American Journal of Educational Research 2327-6150 4 7 2016 5 3 Disproof the Birch and Swinnerton-Dyer Conjecture 504 506 EN Leszek W. Gu?a Lublin, Poland EDUCATION2016471 10.12691/education-4-7-1 2015 12 28 2016 3 14 2016 5 1 The Gu?a's Theorem. Only one in the world the proper proof of Fermat's Last Theorem for n=4. Disproof the Birch and Swinnerton-Dyer Conjecture. The proof of Goldbach's Conjecture.