Step
*
2
of Lemma
sqeq-copath5
1. n : Base
2. m : Base
3. is-exception((m + 1) - n - 1)
⊢ (m + 1) - n - 1 ≤ m - n - 1 - 1
BY
{ (ExceptionCases (-1) THEN Try (ExceptionSqequal (-1))) }
1
1. n : Base
2. m : Base
3. is-exception(((m + 1) - n) + (-1))
4. (m + 1) - n ∈ ℤ
5. is-exception(-1)
6. u : Base
7. v : Base
8. -1 ~ exception(u; v)
⊢ (m + 1) - n - 1 ≤ m - n - 1 - 1
2
1. n : Base
2. m : Base
3. is-exception(((m + 1) - n) + (-1))
4. is-exception((m + 1) - n)
5. u : Base
6. v : Base
7. (m + 1) - n ~ exception(u; v)
⊢ (m + 1) - n - 1 ≤ m - n - 1 - 1
Latex:
Latex:
1. n : Base
2. m : Base
3. is-exception((m + 1) - n - 1)
\mvdash{} (m + 1) - n - 1 \mleq{} m - n - 1 - 1
By
Latex:
(ExceptionCases (-1) THEN Try (ExceptionSqequal (-1)))
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