Step
*
1
1
3
of Lemma
assert_of_eq_pair
1. s : DSet
2. t : DSet
3. a1 : |s|
4. a2 : |t|
5. b1 : |s|
6. b2 : |t|
7. <a1, a2> = <b1, b2> ∈ (|s| × |t|)
⊢ a2 = b2 ∈ |t|
BY
{ ((EqHD 7 THENM AbReduce (-1)) THEN Auto) }
Latex:
Latex:
1. s : DSet
2. t : DSet
3. a1 : |s|
4. a2 : |t|
5. b1 : |s|
6. b2 : |t|
7. <a1, a2> = <b1, b2>
\mvdash{} a2 = b2
By
Latex:
((EqHD 7 THENM AbReduce (-1)) THEN Auto)
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