- Slightly modified from a page I made c. 2002

- I wrote this before the Flying Spaghetti Monster was invented. Please note that the IPU predates the FSM by at least 10 years-- its age proves that it is the one true absurdeity.

Here are some excellent logical arguments I have devised to prove to the world that an **Invisible Pink Unicorn** exists. An Invisible Pink Unicorn is a unicorn which is both pink and invisible (how this is possible is a mystery known to the IPU alone).

## Contents |

## Proof of the Existence of the Invisible Pink Unicorn

### Proof by St. Anselm's Ontological Argument

- The Invisible Pink Unicorn is a unicorn that is the most invisible of all unicorns.
- If such a unicorn fails to exist, then a more invisible unicorn -- namely, a unicorn than which is the most invisible unicorn which exists -- can be conceived.
- But this would be absurd: no unicorn can be more invisible than an unicorn which is the most invisible of all unicorns.
- So a unicorn which is the most invisible of all unicorns -- i.e. the Invisible Pink Unicorn -- exists.

### Proof by Definitional Argument

- By definition, the Invisible Pink Unicorn is a unicorn which has every perfection.
- Existence is a perfection.
- Therefore, the IPU exists.

### Proof by Modal Argument

- It is possible that it is necessary that the Invisible Pink Unicorn exists.
- Therefore, the IPU exists.

### Proof by Experimental Argument

- The phrase 'Invisible Pink Unicorn' has a meaning only if the IPU exists.
- Therefore, the IPU exists.

### Proof by Mereological Argument

- I exist.
- Therefore something exists.
- Whenever a bunch of things exist, the sum of their invisible unicorn parts also exists.
- Therefore the sum of all invisible unicorn parts exists.
- The Invisible Pink Unicorn is the sum of all invisible unicorn parts.
- Therefore, the Invisible Pink Unicorn exists.

### Proof by Proof

- By the definition of the IPU, the Invisible Pink Unicorn allows us to prove things.
- If the IPU didn't exist, we wouldn't be able to prove anything.
- We are able to prove things.
- Therefore, the IPU exists.

### Proof by Existence

- By definition of Unicornism, the purpose of life is to learn about the Invisible Pink Unicorn.
- If the IPU did not exist, we would not be able to learn about Her.
- Therefore there would be no purpose in life.
- Therefore life would not exist.

- Life exists.
- Therefore, the IPU exists.

### Shii's Meta-Proof

- This is a proof of the IPU's existence.
- If the reader finishes reading this proof, the existence of the IPU will be proven to him/her.
- If the existence of the IPU is proven, then the IPU exists.
- Therefore, the IPU exists.

### Proof By Anecdote

- The Invisible Pink Unicorn is visible to those who believe in Her.
- If the Invisible Pink Unicorn is seen, then She must exist.
- I have seen the Invisible Pink Unicorn.
- Therefore, the IPU exists.

*(This and the one above it were submitted to iidb.org and became #85 and #86 in the widely copy-pasted "Hundreds of Proofs of God's Existence")*