Axiom of ChoiceBring a problem ↗

Logo studies · provisional

Did I make the right choice?

Two choice marks, two Banach–Tarski studies, one finite equi­decomposition, one hybrid, GPT’s rejected first try, and Allan’s original logo.

01Choice / visual

One from each

A family of sets with exactly one member selected from each. Clear, compact, and friendly outside mathematics.

02Choice / formal

The compressed axiom

∅∉𝒜 ⇒ ∃f∈∏𝒜

The sharpest mathematical signature. Best as a secondary line; quite proudly opaque at favicon size.

03BTP / schematic

Quiet duplication

One ball, the same five notional pieces, two balls. A ledger—not a fictional picture of the actual pieces.

04BTP / hybrid

Paradoxical braces

{P₁…P₅} ⇢ {P₁P₂}{P₃P₄P₅}

Sets plus equi­decomposition in one construction. Distinctive, technical, and suspiciously like useful code.

05Equi­decomposition / honest

Haberdasher hinge

△₄ ↔ □₄

A genuine finite dissection rather than simulated Banach–Tarski. Beautiful, though less specific to Choice.

06BTP / minimal hybrid

Brace / ball toggle

◯ ⇄ {•}{•}

Four curved strokes and two dots can genuinely animate between states. Strongest as a digital mark.

07GPT / rejected

GPT's rejected first try

My first attempt: five colored pieces acting out equi­decomposition. Retired from contention, retained as evidence.

08Original / Allan

Original crappy logo

Allan’s original axiomofchoice.llc wordmark, preserved from the prior site as the actual historical exhibit.