Order-reflecting function
Set
context
$X,Y$
context
$ \le_X,\le_Y $
context
…non-strict partial order
definiendum
$ f\in\mathrm{it} $
$f:X\to Y$
$x,y\in X$
postulate
$ f(x)\le_Y f(y)\implies x\le_X y $
Discussion
Reference
Wikipedia:
Monotone function
Parents
Refinement of
Function
Context
Non-strict partial order