Function extern_spec_PartialOrd_usize_usize_le 

pub fn extern_spec_PartialOrd_usize_usize_le(
    self_: &usize,
    other: &usize,
) -> bool

extern spec for usize::le

This is not a real function: its only use is for documentation.

terminates

ghost

ensures

result == (self.deep_model() <= other.deep_model())