Okay kiddo, let me try to explain what a Manin triple is in a way that is easy for you to understand.
First, think of a group of friends playing together. Each friend has their own unique skills and strengths that help the group be successful. This is kind of like a Manin triple, which is a group of three mathematical objects that work together to solve problems.
Now, let's talk about the three objects in a Manin triple. The first object is called a Lie algebra, which is like a toolbox full of mathematical tools that can be used to solve equations. The second object is called a lattice, which is like a grid or a pattern that these tools can be used on. The third object is called a symmetric space, which is like a playground or a field where the game is played.
When these three objects are put together, they form a powerful team that can be used to solve all sorts of mathematical problems. The Lie algebra provides the tools and the lattice provides the surface to work on, while the symmetric space is the arena where the action takes place.
Overall, a Manin triple is a very important concept in math because it helps us understand the relationships between different objects and how they work together to solve problems. Just like how our group of friends work together to solve problems on the playground, the objects in a Manin triple work together to solve problems in math.