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Proof step 4 from proof mult-eq-same (previous step)

mkDecimal(i, i0) * dec = dec_j * dec ⊦ dec = mkDecimal(0, 0), mkDecimal(i, i0) = dec_j

User applied rule constructor cut

And obtained the following new goals

Proof step 5:
dec_j = mkDecimal(i1, i2), mkDecimal(i, i0) * dec = dec_j * dec ⊦ dec = mkDecimal(0, 0), mkDecimal(i, i0) = dec_j

Rule argument

var: dec_j

Additional information

Used simplifier rules: decimal generated by mkDecimal;;