論理 · ronri · logic

ronri.net

A vaporwave dossier on formal reasoning, drifting through infinite gradient space.

FRAGMENT 01 / IDENTITY

P ⇒ P

A proposition implies itself. The first axiom of any system that hopes to be honest. Every floppy disk we ever burned ended with this sentence.

∀p . (p → p)

FRAGMENT 02 / NON-CONTRADICTION

¬(P ∧ ¬P)

A statement and its negation cannot both be true. The marble hallway will not allow it. The arcade light flickers but the rule stands.

∀p . ¬(p ∧ ¬p)

FRAGMENT 03 / EXCLUDED MIDDLE

P ∨ ¬P

Either it is, or it is not. There is no third terminal. The cyan haze does not soften this.

∀p . (p ∨ ¬p)

FRAGMENT 04 / MODUS PONENS

(P ⇒ Q), P ⊢ Q

If a thing implies another, and the first holds, the second must follow. Inference as the slow drift of a magnetic tape head.

((p → q) ∧ p) → q

FRAGMENT 05 / DE MORGAN

¬(P ∧ Q) ≡ ¬P ∨ ¬Q

Negation distributes across conjunction by flipping the connective. A symmetry preserved across every pastel timeline.

¬(p ∧ q) ↔ (¬p ∨ ¬q)

THE GRID PLANE

Reasoning recedes to a vanishing point.