Step
*
2
1
1
of Lemma
sup_functionality
.....antecedent.....
1. ∀[A,A':Set(ℝ)]. ∀b,b':ℝ. ((b = b')
⇒ rseteq(A;A')
⇒ sup(A) = b
⇒ sup(A') = b')
2. [A] : Set(ℝ)
3. [A'] : Set(ℝ)
4. b : ℝ
5. b' : ℝ
6. b = b'
7. rseteq(A;A')
8. sup(A') = b'
⊢ rseteq(A';A)
BY
{ (RepeatFor 2 (ParallelOp -2) THEN Auto) }
Latex:
Latex:
.....antecedent.....
1. \mforall{}[A,A':Set(\mBbbR{})]. \mforall{}b,b':\mBbbR{}. ((b = b') {}\mRightarrow{} rseteq(A;A') {}\mRightarrow{} sup(A) = b {}\mRightarrow{} sup(A') = b')
2. [A] : Set(\mBbbR{})
3. [A'] : Set(\mBbbR{})
4. b : \mBbbR{}
5. b' : \mBbbR{}
6. b = b'
7. rseteq(A;A')
8. sup(A') = b'
\mvdash{} rseteq(A';A)
By
Latex:
(RepeatFor 2 (ParallelOp -2) THEN Auto)
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