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Proof step 25 from proof divi-sub (previous step)

m * n = n1 + m * n2, n2 ≤ n ⊦ ∃ n0. m * n0 = n1

User applied rule exists right

And obtained the following new goals

Proof step 26:
m * n = n1 + m * n2, n2 ≤ n ⊦ m * (n - n2) = n1

Rule argument

pos: right 1 terms: n - n2 abort: F discard: T computed: F

Additional information

Used terms: n - n2