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Proof step 7 from proof mult-one (previous step)

¬(1 % 10 = 0 ∧ 0 ≠ 0 ∧ 1 ≠ 0) ⊦ mkDecimal(dec_i.int * 1, dec_i.scale + mkDecimal(1, 0).scale) = dec_i

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
⊦ mkDecimal(dec_i.int, dec_i.scale + mkDecimal(1, 0).scale) = dec_i

Rule argument

Additional information

Used simplifier rules: commutativity: ⊦ i * j = j * i; from specification int-mult%associativity: ⊦ i * j * j0 = (i * j) * j0; from specification int-mult%one: ⊦ 1 * i = i; from specification int-mult