3 - GiacomoZheng/gm GitHub Wiki
constant
Many language is allow users to change the change the value of an pointer. However, here, gm is a language basing on the mathematics, in which the equality ("=") meaning indistinguishable. I cannot stand to use the same identifiera have the different meaning in the same situation. Therefore, all the definitions are immutable in gm. In addition, thanks to the immutability, I can make the order of definitions irrelevant.
People use the constant means the pointer