Math proves God exists.
Christianity is objectively correct so far as can be rationally known, and to the extent that other religions/philosophies contradict it, to that extent they are incorrect. The totality of all science has been a mostly-unwitting exercise in proving Christianity correct. The people who developed the various fields of modern science for the most part weren't consciously attempting to prove Christianity true, yet they nonetheless ended up doing so. To wit:
God's existence is a mathematical theorem within standard physics. Standard physics is the known laws of physics, viz., the Second Law of Thermodynamics, General Relativity, and Quantum Mechanics. This theorem has been given in the form of physicist and mathematician Prof. Frank J. Tipler's Omega Point cosmology. These aforestated known physical laws have been confirmed by every experiment conducted to date. Hence, the only way to avoid Tipler's Omega Point Theorem is to reject empirical science. As Prof. Stephen Hawking wrote, "one cannot really argue with a mathematical theorem." (From p. 67 of Stephen Hawking, The Illustrated A Brief History of Time [New York, NY: Bantam Books, 1996; 1st ed., 1988].)
Prof. Tipler's Omega Point cosmology has been extensively peer-reviewed and published in a number of the world's leading physics and science journals, such as Reports on Progress in Physics (the leading journal of the Institute of Physics, Britain's main professional organization for physicists), Monthly Notices of the Royal Astronomical Society (one of the world's leading astrophysics journals), the International Journal of Theoretical Physics (a journal that Nobel Prize in Physics winner Richard Feynman also published in), and Physics Letters, among other journals.
Prof. Tipler's Ph.D. is in the field of Global General Relativity, which is the field created by Profs. Stephen Hawking and Roger Penrose during the formulation of their Singularity Theorems in the 1960s. Global General Relativity is General Relativity applied on the scale of the entire universe as a whole, and is the most elite and rarefied field of physics. Tipler is also an expert in quantum field theory (i.e., Quantum Mechanics combined with special-relativistic particle physics) and computer theory.
For much more on Prof. Tipler's Omega Point cosmology and the details on how it uniquely conforms to, and precisely matches, the cosmology described in the New Testament, see the following article, which also addresses the societal implications of the Omega Point cosmology:
James Redford, "The Physics of God and the Quantum Gravity Theory of Everything", Social Science Research Network (SSRN), Sept. 10, 2012 (orig. pub. Dec. 19, 2011), 186 pp., doi:10.2139/ssrn.1974708, archive.org/download/ThePhysicsOfGodAndTheQuantumGravityTheoryOfEverything/Redford-Physics-of-God.pdf , webcitation.org/74HMsJGbP , www.freezepage.com/1560446695DXLEZNRPJS