I'm writing a set of instructions targeted towards a person. Each instruction has to be followed exactly as it is written, without any deviations. The order that the instructions are to be performed in does not matter. I.e. each instruction is independent of the other instructions.
But there is one exception. One of the instructions can be skipped completely if the person can prove that a certain condition is true. However, I want to make the person certain that not only does this condition have to be true, they should also be ready to provide evidence (to me) that the condition actually is true.
I want to convey that it's not enough for me to get the answer "yes!" to the question "are you sure this condition is true?". I would also require "hard proof" that undeniably supports their case.
Is there a word or succinct phrase to convey this?
The closest I can come up with is "verifiably guaranteed". But I'm not sure that it makes sense or gets my point across.
For example:
- "If all the shoes you own are verifiably guaranteed to be black, then skip this instruction"
- "You may skip this part if it's verifiably guaranteed that you have two feet"