Santa Exists (axiomatic)
Thesis - Santa does not exist; anti-thesis - Santa does exist; Synthesis - Santa does exist in some possible world, and hopefully ours. (Hegel & Lewis)
Santa exists in the best of all possible worlds. This is the best of all possible worlds. Hence Santa exists in this world (Liebniz in an Aristotelian syllogism).
Santa does not exist physically; but he supervenes on the world (physicalism)
I am Santa (Ayn Rands ethical egoism)
Ana-al-Santa (Al-Hallaj - the sufi)
I see Santa in the sky hunting bison (Black Elk)
Zarathrustra comes down from the mountain. Have they not heard? Do they not know? I must hurry. Men in the market - they come and go talking of the loss and profit; men asleep yet walking; men asleep yet talking; the world darkly asleep. That draught of cool mountain air has awoken me - I shall awake them. This news keep s me most feverish awake; as a fever it runs through me; as a fever I shall speak out. The market-place beckons, and around all manner of men and all manner of manners - they dress fine these men: "Listen! And be alarmed, raise up thy voices and weep, and rend thus thy clothes and rub ash in thine hair as your fathers have done and their fathers before them! I have news and it hangs heavy in my heart, but also a fierce and subtle joy I know not how or where runs through me and makes me speak - a fever of subtle and unsubtle joy. Oh men, wish that I could be silent like the wise we have known and revered; Oh, men of the market place, Listen! SANTA IS DEAD! Oh tearful Men of the Market-Place, Santa is gone! [he outstretches both arms] Santa never here, never there & never everywhere - never seen; Santa missed! the Being of Santa escapes like void; the Being of Santa escapes all totalising logic. Thus: Santa is not an absolute free spirit; thus: Santa is a becoming-free-spirit; The world wills into existence free spirits - this is its purpose; Oh crowd of men, your faces up-turned to me and eager, Listen! Rejoice! Take good heed! Gladden hearts! Santa will exist and is the worlds purpose" (Nietszchian teleological Santa).
Santa is the World (Spinozian immanence)
The world is a mode of Santa (again Spinoza)
Santa does not exist as a whole, but atomically (Democritus)
In my world there is a Santa (solipsism)
Everything is Santa (Santa monism)
Santa Exists and is watching you (Big Brotherism/NSA'ism/Panoptic Santa)
Take you inner Santa for a walk: Being both Santa and neither Santa - Schizoid Santa, being the meridian of being and the flight of thought via an Immanent plane through speeds accelarated and intensified; Elves his correlative in tempo; micro-santastic in a clamour of being; Santa-Sainta, Sainta-Santa,Santa-Sainta - our chant of Santa; Santa/Elf and Elf/Santa - two virtuistic modes through difference enact and enunciate the World-without-Santa and the World-With-Santa. A thousand Santas on a thousand plateaus is the image of our Santa; endlessly multiplying Santa our logic of Santa; Santa divided and saintly healed; Santa thus unending; endless Santa; Santa after Saint; Saint Santa materialises and territorialises the dematerialised ethic of Santa. Saint Santa sanctified but never sanctimonius.
(Santa Deleuze & Sainta Guattari)