Database
REAL AND COMPLEX NUMBERS
Integer sets
Decimal arithmetic
25nn0
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10nn
Metamath Proof Explorer
Ascii
Structured
Theorem
25nn0
Description:
25 is a nonnegative integer.
(Contributed by
Umit Teoman Dogan
, 10-Jun-2026)
Ref
Expression
Assertion
25nn0
⊢
;
2 5 ∈ ℕ
0
Proof
Step
Hyp
Ref
Expression
1
2nn0
⊢
2 ∈ ℕ
0
2
5nn0
⊢
5 ∈ ℕ
0
3
1
2
deccl
⊢
;
2 5 ∈ ℕ
0