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We begin with a question that seems almost too obvious to ask: is 2+2=4 really true? In everyday life it feels immediate—two apples and two apples make four apples. But mathematics asks a deeper question: how do we actually know something is true? One way is through proof. A proof starts from a few basic statements and rules, and step by step derives a new statement from them. The key challenge, then, is choosing the right starting points. Mathematicians eventually chose sets—simple collections of objects—as the most fundamental building blocks. From a few basic assumptions about sets, we can define numbers, define addition, and gradually build the entire structure of mathematics. Even a statement as simple as 2+2=4 can therefore be derived from these basic principles. In this session we will not focus on technical details, but on understanding the overall structure of the idea. The reasoning can be followed in simple terms, even by non-mathematicians, and it reveals something remarkable: from a small number of simple starting points, an enormous world of mathematical knowledge can be built. Along the way, we will also look at the historical path that led to this view—how mathematicians gradually refined these ideas over centuries in an intellectual quest to understand the foundations of mathematics. This session will be led by Jordi Molins. Bring wine/beer/drinks/food/snacks/whatever if you want to. **Our events fill up very quickly. To avoid missing out on future events, join the WhatsApp group via this link:** [https://tally.so/r/w4G5L5](https://tally.so/r/w4G5L5) Press the buzzer marked Semi sotano 2 (bottom left on the panel) to be let in. It's down the stairs, first door on the right. **Image**: Ptolemy, in the School of Athens by Raphael.

**⚠️** **[Save your spot on the official event page](https://www.lewagon.com/events/barcelona-demo-day-tech-ai-projects-paLklV)** Curious to see what you can build after 9 weeks at Le Wagon? Join our **Demo Day** in **Barcelona** and find out. Our **Data Analytics** and **Data Science & AI** students will present the final projects they built from scratch in just 2 weeks. You'll get to: 👀 See live demos of real data products 🚀 How far you can go with tech skills in 9 weeks 🙌 Meet the team and connect with our community Whether you're thinking about joining a bootcamp or just love tech, this is the perfect chance to discover what Le Wagon is all about. 📅 Friday, March 20 ⏰ 5:30 PM 📍 Le Wagon Barcelona Free and open to everyone, just register below! **⚠️** **[Save your spot on the official event page](https://www.lewagon.com/events/barcelona-demo-day-tech-ai-projects-paLklV)**

**Parece que ya no se pueda hacer nada sin pasar por la IA, pero si se usa como una herramienta más, permite acelerar radicalmente el desarrollo, desde el prototipado hasta el lanzamiento de webs funcionales sin necesidad de escribir todo el código a mano. En esta ocasió, veremos 10web y su nueva herramienta de Vibe for WordPress, que permite crear un WordPress con toda su infraestructura sólo con unos pocos prompts.** 10Web integra herramientas de generación AI-nativa, hosting gestionado, optimización automática y un builder basado en Elementor enriquecido con widgets profesionales, todo ello en una única plataforma. Este sistema de vibe coding permite pasar de textos descriptivos a webs completas en muy poco tiempo, combinando libre creatividad frontend con todo el backend potente de WordPress: plugins, WooCommerce, SEO, gestión de usuarios y mucho más. Este enfoque no sólo reduce drásticamente el tiempo de desarrollo, sino que democratiza el acceso a la creación web, haciendo posible que desarrolladores, agencias y creadores autonomicen proyectos con alta calidad técnica en cuestión de horas. ¿Quieres ver un nuevo enfoque de la IA para WordPress? Apúntate y ven a aprender con nosotros. Ver info completa en nuestra web: [https://wpbarcelona.com/meetups/10web-una-ia-para-crear-wordpress/](https://wpbarcelona.com/meetups/10web-una-ia-para-crear-wordpress/)

Nuestra nueva web: [https://www.patreon.com/singlesbarcelona](https://www.patreon.com/singlesbarcelona) **RANGO 30-45 AÑOS** **RANGO 30-45 AÑOS** **RANGO 30-45 AÑOS** **🤩❤️🍹SPEED DATING EXPRESS FIRST DATES INTERCAMBIO DE TELÉFONOS LIBRE** **SPEED DATING CITAS RÁPIDAS. ENCUENTRA PAREJA.** INTERCAMBIO DE TELÉFONOS LIBRE. **Precio:** **Inscripción gratis para las chicas.** Se tiene que pedir consumición en el bar. **Inscripción 5€ EN EFECTIVO para los chicos +** Se tiene que pedir consumición en el bar. Citas de 7 minutos aproximadamente según los que seamos. Todos hablan con todos de 2 en 2. Inscripción y ubicación por whatsapp 630 467 646 una vez estés apuntado aquí en meetup. **Primero apúntate en meetup luego envía whatsapp. No envíes whatsapp si no apareces en la lista de apuntados del evento meetup.** Gracias.

Join **Preply and Agora** for a high-impact, 1.5-day hackathon at **Preply’s Barcelona Office**. We’re bringing together some of the city’s strongest engineering talent to build the next generation of AI-powered language learning using agent-based and real-time technologies. ​This is your opportunity to create solutions that help learners progress faster, understand their growth clearly, and speak with confidence in everyday situations. ​You’ll get hands-on access to technologies from **Agora, OpenAI, AWS, Anam, and Thymia** to prototype intelligent systems that push applied GenAI forward. ​If you’re excited about building AI agents that actually change how people learn and communicate, this is your room! 🤝 ## ​Who Should Apply ​We’re looking for: * ​Senior Software Engineers (priority given to Barcelona-based engineers) * ​AI / ML Engineers * ​University students and junior engineers with strong technical fundamentals * ​Preply team members ​If you’re into AI agents, real-time systems, or applied GenAI, you’ll fit right in. ## ​Prizes ​**€17,500 Total Prize Pool** ​🥇 **1st Place:** €10,000 + Fast-track interview with Preply 🥈 **2nd Place:** €5,000 🥉 **3rd Place:** €2,500 ## ​Format & What’s Included * ​Teams of 3–5 participants (formed on-site or registered as a team) * ​Mentorship from engineers and technical leaders * ​Project pitches and final demos * ​Breakfast, lunch, and snacks provided * ​Direct exposure to Preply’s engineering leadership ## ​Challenge Areas ​Teams can work across one or more of the following tracks: ​**Visualizing Learning Progress** Make growth measurable — track skills, confidence, and progress in ways learners actually understand. ​**Accelerating Learning with Agents** Build personalized practice systems with intelligent feedback and coordinated agent workflows. ​**Live Learning & Real-Time Context** Design systems that learn from live conversations, media, or real-world scenarios. ​Have a bold idea that fits the theme? We want to see it. ## ​Technology & Partners ​Participants will receive limited complimentary access to partner platforms, including: * ​Real-time audio and video streaming * ​Speech-to-Text (STT) and Text-to-Speech (TTS) * ​Large Language Models (LLMs) * ​Avatars and multimodal AI * ​Cloud infrastructure and agent tooling ​Here’s a quick overview of the schedule: ## ​Agenda ​**Friday - 20th of March** • 5 PM – Kick-off & keynote • 6–8 PM – Project pitches, team formation & mentoring • 8–8:30 PM – Wrap-up & next-day overview ​**Saturday - 21st of March** • 9–10 AM – Breakfast • 10 AM – Kick-off • 10 AM–4 PM – Hacking time (with lunch break) • 4–6 PM – Presentations, awards & networking 🎉 ## ​How to Apply * ​Apply individually or with a team * ​Applications are manually reviewed. * ​Accepted participants will receive a confirmation email with next steps

Para confirmas su asistencia escribir un WhatsApp a +34675806272. Para tod@s los principiantes que queréis aprender a jugar beach voley, este es su evento. Enseñaremos paso a paso como se juega, la técnica, las posiciones en el campo y más que todo nos divertiremos. Espero veros pronto. For all the beginners who want to learn to play beach volleyball, this is your event. We will teach step by step how to play, the technique, the positions on the field and most of all we will have fun. I hope to see you soon.

Nuestra nueva web: [https://www.patreon.com/singlesbarcelona](https://www.patreon.com/singlesbarcelona) **RANGO 37-47 AÑOS** **RANGO 37-47 AÑOS** **RANGO 37-47 AÑOS** **🤩❤️🍹SPEED DATING EXPRESS FIRST DATES INTERCAMBIO DE TELÉFONOS LIBRE** **SPEED DATING CITAS RÁPIDAS. ENCUENTRA PAREJA.** INTERCAMBIO DE TELÉFONOS LIBRE. **Precio:** **Inscripción gratis para las chicas.** Se tiene que pedir consumición en el bar. **Inscripción 5€ EN EFECTIVO para los chicos +** Se tiene que pedir consumición en el bar. Citas de 7 minutos aproximadamente según los que seamos. Todos hablan con todos de 2 en 2. Inscripción y ubicación por whatsapp 630 467 646 una vez estés apuntado aquí en meetup. **Primero apúntate en meetup luego envía whatsapp. No envíes whatsapp si no apareces en la lista de apuntados del evento meetup.** Gracias.

Para tod@s los principiantes que queréis aprender a jugar beach voley, este es su evento. Enseñaremos paso a paso como se juega, la técnica, las posiciones en el campo y más que todo nos divertiremos. Espero veros pronto. For all the beginners who want to learn to play beach volleyball, this is your event. We will teach step by step how to play, the technique, the positions on the field and most of all we will have fun. I hope to see you soon.

Todos los amantes del voley playa que lleven más de 6 meses jugando o entrenando son bienvenidos. A mejorar la técnica y los desplazamientos en el terreno 💪🏾💪🏾.

Nuestra nueva web: [https://www.patreon.com/singlesbarcelona](https://www.patreon.com/singlesbarcelona) **RANGO 37-47 AÑO** **RANGO 37-47 AÑOS** **RANGO 37-47 AÑOS** **🤩❤️🍹SPEED DATING EXPRESS FIRST DATES INTERCAMBIO DE TELÉFONOS LIBRE** **SPEED DATING CITAS RÁPIDAS. ENCUENTRA PAREJA.** INTERCAMBIO DE TELÉFONOS LIBRE. **Precio:** **Inscripción gratis para las chicas.** Se tiene que pedir consumición en el bar. **Inscripción 5€ EN EFECTIVO para los chicos +** Se tiene que pedir consumición en el bar. Citas de 7 minutos aproximadamente según los que seamos. Todos hablan con todos de 2 en 2. Inscripción y ubicación por whatsapp 630 467 646 una vez estés apuntado aquí en meetup. **Primero apúntate en meetup luego envía whatsapp. No envíes whatsapp si no apareces en la lista de apuntados del evento meetup.** Gracias.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

**New Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

OpenClaw, NemoClaw, personal assistants, 24/7 agents. What does it all mean? How does it all work and what should we know about it? Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)

We thought of one of the interesting things that can be enjoyed at this time of the year. We will be meeting at Immaculate Conception Catholic Church for a "Fish Fry" in Marian Hall on Friday, March 27th at 5:00 PM. It might be fun for you to experience what has become a tradition on the Fridays before Easter. They will have fried fish or baked fish, French fries and Cole slaw, as well as beverages, all for $16.00 for adults. They will have other beverages and desserts available for sale, as well. We have never tried this, and sometimes there are quite a few people at these events so we hope that we will be able to find each other easily. I'll try to have signs outside Marian Hall that Identify our group. We hope to have you join us!