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Proof step 7 from proof short-2bytes-01 (previous step)

0 < s2i(i2s(bytes2int(by ' + by0 '))), 32767 < s2i(i2s(bytes2int(by ' + by0 '))), 0 ≤ s2i(i2s(bytes2int(by ' + by0 '))) + s2i(sho), 0 < s2i(i2s(bytes2int(by ' + by0 '))) + s2i(sho), 65536 ≤ s2i(i2s(bytes2int(by ' + by0 '))) + s2i(sho) ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 8:
⊦ ¬ 32767 < s2i(sho)

Rule argument

seq: ⊦ ¬ 32767 < s2i(sho) subst: [sho] → [i2s(bytes2int(by ' + by0 '))] rotate: F spec: byte inst: name: short-ngr

Additional information

Used terms: i2s(bytes2int(by ' + by0 '))