Animals Can Count and Use Zero. How Far Does Their Number Sense Go?

the mind of human and non-human animals in reflection; reflection as identity function

https://github.com/rene-tobner/unity#principle-1--the-mind-o...

"(reflection equals the identity function in lambda calculus; lambda calculus can encode math [math’s foundation/origin in counting: Y-combinator -> recursion -> Peano numbers -> counting in general -> addition/subtraction etc.] and logic)"