[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 8 from proof add-eq (previous step)

rational(i, j) + rational(i0, j0) = rational(i, j) + rj0, 0 < j, 0 < j0 ⊦ rational(i0, j0) = rj0

User applied rule insert lemma

And obtained the following new goals

Proof step 9:
⊦ ∃ i, j. ri = rational(i, j) ∧ 0 < j
Proof step 10:
∃ i, j. rj0 = rational(i, j) ∧ 0 < j, rational(i, j) + rational(i0, j0) = rational(i, j) + rj0, 0 < j, 0 < j0 ⊦ rational(i0, j0) = rj0

Rule argument

name: exrat-01 subst: [ri] → [rj0]

Additional information

Used terms: rj0