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Theorem toinftoinf-append-add
⊦ ¬ # σ < n∞ ∧ ¬ # σ0 < n∞1 → (σ to∞ n∞) + σ0 to∞ n∞1 + n∞ = (σ to∞ n∞) + (σ0 to∞ n∞1)
Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
toinfto-append-add
,
Used by units in proved state:
Proof exists?: Yes
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the proof
Infos about the proof
Proved?: Yes
Interactions: 2
Proof steps: 4
Used lemmas:
to-append-add
,
toinf-add
,
toinf-fin
,
toinf-empty2
,
appendend-equal
,
append-assoc
,
append-toinf-ls
,
toinf-inf
,
Used spec theorems:
Used simplifier rules:
nat-inf
/
add-all-inf
nat-inf
/
inf-less
nat-basic2
/
a
nat-basic2
/
c
nat-inf
/
add-assoc
nat-inf
/
add-comm
nat-inf
/
add-inf2