Vaisheshika is a school of Indian philosophy that is based on the idea of atomistic realism, which holds that the ultimate reality is composed of indivisible and eternal atoms. This view is supported by several arguments and evidence put forth by Vaisheshika thinkers.

Firstly, Vaisheshika argues that the existence of the world can be explained through the atomic theory. They believe that the world is composed of an infinite number of atoms, which are eternal and indestructible. These atoms combine and recombine to form different objects and substances in the world. This argument is based on the observation that all objects in the world are made up of smaller particles, which can be further divided into atoms. This suggests that the ultimate reality is made up of these indivisible particles.

Secondly, Vaisheshika also uses the concept of causation to support its atomistic view of reality. According to this school of thought, every effect has a cause, and this cause is made up of smaller particles. This chain of causation ultimately leads to the existence of atoms as the ultimate cause of all things. This argument is based on the observation that everything in the world is caused by something else, and this chain of causation can be traced back to the smallest particles, i.e., atoms.

Furthermore, Vaisheshika also presents logical arguments to support its atomistic view. They argue that if the world was composed of continuous substances, it would be impossible to explain the changes and transformations that occur in the world. However, if the world is made up of discrete and indivisible atoms, then these changes and transformations can be easily explained. This argument is based on the idea that atoms are the building blocks of the world, and all changes and transformations are a result of the rearrangement of these atoms.

In addition to these arguments, Vaisheshika also presents empirical evidence to support its atomistic view. They believe that atoms are not just theoretical constructs but are actual physical entities that can be perceived through sense experience. For instance, the concept of space and time, which are central to Vaisheshika philosophy, can be perceived through the senses. This suggests that atoms, which are the building blocks of space and time, are also perceivable.

In conclusion, Vaisheshika uses a combination of logical arguments, empirical evidence, and philosophical reasoning to support its atomistic view of reality. They believe that atoms are the fundamental units of the world, and all things can be explained through their combinations and transformations. This view has had a significant impact on Indian philosophy and continues to be a subject of debate and discussion among philosophers and scientists.