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Proof step 3 from proof notequal-01 (previous step)

i2s(i) = i2s(j), ~32768 ≤ i, i ≤ 32767, ~32768 ≤ j, j ≤ 32767 ⊦ i = j

User applied rule cut formula

And obtained the following new goals

Proof step 4:
s2i(i2s(i)) = s2i(i2s(j)), i2s(i) = i2s(j), ~32768 ≤ i, i ≤ 32767, ~32768 ≤ j, j ≤ 32767 ⊦ i = j

Rule argument

fma: s2i(i2s(i)) = s2i(i2s(j))

Additional information

Used formulas: s2i(i2s(i)) = s2i(i2s(j))