Description: The ordered power series structure is a totally ordered set. (Contributed by Mario Carneiro, 2-Jun-2015)
Ref | Expression | ||
---|---|---|---|
Hypothesis | psr1val.1 | ⊢ 𝑆 = ( PwSer1 ‘ 𝑅 ) | |
Assertion | psr1tos | ⊢ ( 𝑅 ∈ Toset → 𝑆 ∈ Toset ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | psr1val.1 | ⊢ 𝑆 = ( PwSer1 ‘ 𝑅 ) | |
2 | 1 | psr1val | ⊢ 𝑆 = ( ( 1o ordPwSer 𝑅 ) ‘ ∅ ) |
3 | 1on | ⊢ 1o ∈ On | |
4 | 3 | a1i | ⊢ ( 𝑅 ∈ Toset → 1o ∈ On ) |
5 | id | ⊢ ( 𝑅 ∈ Toset → 𝑅 ∈ Toset ) | |
6 | 0ss | ⊢ ∅ ⊆ ( 1o × 1o ) | |
7 | 6 | a1i | ⊢ ( 𝑅 ∈ Toset → ∅ ⊆ ( 1o × 1o ) ) |
8 | 0we1 | ⊢ ∅ We 1o | |
9 | 8 | a1i | ⊢ ( 𝑅 ∈ Toset → ∅ We 1o ) |
10 | 2 4 5 7 9 | opsrtos | ⊢ ( 𝑅 ∈ Toset → 𝑆 ∈ Toset ) |