2019 Reprint of 1910 Edition. Volume One Only. Full facsimile of the original edition, not reproduced with Optical Recognition software. Originally published in three volumes. There is no doubt that Principia Mathematica [PM] is of great importance in the history of mathematics and philosophy: it sparked interest in symbolic logic and advanced the subject by popularizing it; it showcased the powers and capacities of symbolic logic; and it showed how advances in philosophy of mathematics and symbolic logic could go hand-in-hand with tremendous fruitfulness. Indeed,