Step
*
1
1
1
of Lemma
gamma-neighbourhood-prop1
1. beta : ℕ ⟶ ℕ
2. n0 : finite-nat-seq()
3. a : ℕ ⟶ ℕ
4. init-seg-nat-seq(a^((fst(n0)) + 1);n0) ~ tt
⊢ False
BY
{ ((Assert ⌜↑init-seg-nat-seq(a^((fst(n0)) + 1);n0)⌝⋅ THENA (HypSubst' (-1) 0 THEN Auto))
THEN (RWO "assert-init-seg-nat-seq" (-1) THENA Auto)
THEN ExRepD) }
1
1. beta : ℕ ⟶ ℕ
2. n0 : finite-nat-seq()
3. a : ℕ ⟶ ℕ
4. init-seg-nat-seq(a^((fst(n0)) + 1);n0) ~ tt
5. h : finite-nat-seq()
6. n0 = a^((fst(n0)) + 1)**h ∈ finite-nat-seq()
⊢ False
Latex:
Latex:
1. beta : \mBbbN{} {}\mrightarrow{} \mBbbN{}
2. n0 : finite-nat-seq()
3. a : \mBbbN{} {}\mrightarrow{} \mBbbN{}
4. init-seg-nat-seq(a\^{}((fst(n0)) + 1);n0) \msim{} tt
\mvdash{} False
By
Latex:
((Assert \mkleeneopen{}\muparrow{}init-seg-nat-seq(a\^{}((fst(n0)) + 1);n0)\mkleeneclose{}\mcdot{} THENA (HypSubst' (-1) 0 THEN Auto))
THEN (RWO "assert-init-seg-nat-seq" (-1) THENA Auto)
THEN ExRepD)
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