Step
*
1
of Lemma
le-add-cancel4
.....equality.....
1. c : ℤ
2. t : ℤ
3. t' : ℤ
4. t = t' ∈ ℤ
5. uiff((c + t) ≤ (0 + t');c ≤ 0)
⊢ 0 + t' ~ t'
BY
{ (RW IntNormC 0 THEN Auto) }
Latex:
Latex:
.....equality.....
1. c : \mBbbZ{}
2. t : \mBbbZ{}
3. t' : \mBbbZ{}
4. t = t'
5. uiff((c + t) \mleq{} (0 + t');c \mleq{} 0)
\mvdash{} 0 + t' \msim{} t'
By
Latex:
(RW IntNormC 0 THEN Auto)
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