Step
*
of Lemma
fractional-part-rep
∀r:{r:ℚ| (0 ≤ r) ∧ r < 1} . ∃a,b:ℕ. ((0 ≤ a) ∧ a < b ∧ (r = (a/b) ∈ ℚ))
BY
{ (Auto THEN D -1 THEN (Assert (0 ≤ r) ∧ r < 1 BY (Unhide THEN Auto)) THEN Thin (-2))⋅ }
1
1. r : ℚ
2. (0 ≤ r) ∧ r < 1
⊢ ∃a,b:ℕ. ((0 ≤ a) ∧ a < b ∧ (r = (a/b) ∈ ℚ))
Latex:
Latex:
\mforall{}r:\{r:\mBbbQ{}| (0 \mleq{} r) \mwedge{} r < 1\} . \mexists{}a,b:\mBbbN{}. ((0 \mleq{} a) \mwedge{} a < b \mwedge{} (r = (a/b)))
By
Latex:
(Auto THEN D -1 THEN (Assert (0 \mleq{} r) \mwedge{} r < 1 BY (Unhide THEN Auto)) THEN Thin (-2))\mcdot{}
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