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BASIC STRUCTURES
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1strstr
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1strbas
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Theorem
1strstr
Description:
A constructed one-slot structure.
(Contributed by
AV
, 27-Mar-2020)
Ref
Expression
Hypothesis
1str.g
⊢
G
=
Base
ndx
B
Assertion
1strstr
⊢
G
Struct
1
1
Proof
Step
Hyp
Ref
Expression
1
1str.g
⊢
G
=
Base
ndx
B
2
1nn
⊢
1
∈
ℕ
3
basendx
⊢
Base
ndx
=
1
4
2
3
strle1
⊢
Base
ndx
B
Struct
1
1
5
1
4
eqbrtri
⊢
G
Struct
1
1