Breakthrough: GPT-5.6 Resolves Three-Decade Convex Optimization Mystery

🚀 The Headline News

In a stunning display of artificial intelligence capability, GPT-5.6 has successfully bridged a 30-year void in the field of convex optimization. This achievement was made possible through the application of a specific prompting technique, mirroring the methodology used in the previous "CDC proof" announcement. To ensure absolute mathematical rigor, the result was formally verified using the Lean theorem prover.

Post Metadata:

Date: July 15, 2026
Community: r/math
Reception: 726 points (95% approval rating)

🛠️ Community Governance: The Rules of /r/math

The discussion took place within the r/math subreddit, a community dedicated to the practice and profession of mathematics. To maintain high standards, the following regulations are strictly enforced:

Core Guidelines

Thematic Consistency: All content must be directly related to mathematics.
- Note: Political discourse is only permitted if it pertains to concrete events affecting the mathematical community. ~~General political rambling is forbidden.~~
Substantive Inquiry: Questions must be designed to trigger deep discussion.
- $\text{Quick Questions} \rightarrow$ Use the dedicated thread.
- $\text{Real-world estimations} \rightarrow$ Use r/askmath or r/theydidthemath.
- $\text{Learning help} \rightarrow$ Use r/learnmath.
Academic Integrity: $\text{No homework help allowed}$ . Please visit r/homeworkhelp or r/cheatatmathhomework.
Professional Advice: Career or educational guidance is restricted to the stickied Career Education Questions thread.
Quality Media: Image or video posts must be high-effort and accompanied by a comment explaining their relevance to promote dialogue.
Interpersonal Conduct:

"Be excellent to each other. Do not troll, insult, antagonize, or otherwise harass."

Moderation Workflow:

📅 Weekly Schedule & Resources

The community organizes its discussions via a recurring calendar:

Monday: "What Are You Working On?"
Tuesday: "Discussing Living Proof"
Wednesday: "Quick Questions"
Thursday: "Career and Education Questions"
Friday: "This Week I Learned"
Weekend: Review of Free Online Math Resources

✍️ Technical Guide: Rendering Mathematics on Reddit

To properly view the complex notation used in these discussions, users are encouraged to install specific tools:

Tool	Type	Configuration Note
MathJax	Userscript	Requires Greasemonkey or Tampermonkey
TeX all the things	Chrome Extension	Set inline math to `[ ; ; ]`
TeXtheWorld	Userscript	Standard installation

Syntax Examples

To display a formula like Euler's Identity: [ ; e^{\pi i}+1=0 ; ]

Result: $e^{\pi i} + 1 = 0$

Formatting Cheat Sheet:

Subscripts: x*_sub_* $\rightarrow x_{sub}$
Superscripts: x^(sup) $\rightarrow x^{sup}$
Combined: x*_sub_*sup* $\rightarrow x_{sub}^{sup}$

🔣 Mathematical Symbol Reference

The following symbols are frequently utilized within the community:

Category	Symbols
Basic Math	$\neq, \pm, \mp, \div, \times, \cdot, \sqrt{}, \otimes, \oplus, \ominus, \odot, \le, \ge, \preceq, \succ$
Geometry	$\angle, \perp, \cong, \sim, \parallel, \measuredangle$
Algebra	$\equiv, \approx, \propto, \infty, \lfloor \rfloor, \lceil \rceil, \sum, \prod, \coprod, \int$
Set Theory	$\emptyset, \setminus, \complement, \cap, \cup, \subseteq, \subset, \in, \notin, \mathbb{N}, \mathbb{Z}, \mathbb{Q}, \mathbb{R}, \mathbb{C}, \aleph$
Logic	$\neg, \lor, \land, \implies, \iff, \forall, \exists, \therefore, \because, \top, \bot, \vdash, \vDash$
Analysis	$\int, \iint, \iiint, \oint, \nabla, \Delta, \delta, \partial, \mathcal{F}, \mathcal{L}$
Greek	$\alpha, \beta, \gamma, \delta, \epsilon, \zeta, \eta, \theta, \iota, \kappa, \lambda, \mu, \nu, \xi, \pi, \rho, \sigma, \tau, \phi, \chi, \psi, \omega$

🌐 The Broader Ecosystem

For those seeking specialized knowledge, the following related subreddits are recommended:

General Math

r/learnmath
r/mathbooks
r/puremathematics
r/casualmath

Technical Tools

r/mathematica
r/matlab
r/sagemath

Interdisciplinary Fields

r/algorithms
r/compsci
r/statistics
r/numerical
r/actuary