[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 64 from proof two-even (previous step)

2 * i = 2 * j2 ^2 + (2 * i1)^2 + 4 * i1 + 1 + 2 * (2 * i1 + 1) * j2 ⊦ i = ((2 * i1 + 1) / 2)^2 + ((2 * j2 + 2 * i1 + 1) / 2)^2, 4 * i1 ^2 = (2 * i1)^2

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 65:
⊦ (i * j)^2 = i ^2 * j ^2
Proof step 66:
2 * i = 2 * j2 ^2 + 2 ^2 * i1 ^2 + 4 * i1 + 1 + 2 * (2 * i1 + 1) * j2 ⊦ i = ((2 * i1 + 1) / 2)^2 + ((2 * j2 + 2 * i1 + 1) / 2)^2, 4 * i1 ^2 = 2 ^2 * i1 ^2

Rule argument

spec: inst: name: two-mult seq: ⊦ (i * j)^2 = i ^2 * j ^2 subst: [j, i] → [i1, 2] flags: rewrite, current

Additional information

Used terms: i1, 2