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Mirrors > Home > MPE Home > Th. List > ssidd | Structured version Visualization version GIF version |
Description: Weakening of ssid 3939. (Contributed by BJ, 1-Sep-2022.) |
Ref | Expression |
---|---|
ssidd | ⊢ (𝜑 → 𝐴 ⊆ 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssid 3939 | . 2 ⊢ 𝐴 ⊆ 𝐴 | |
2 | 1 | a1i 11 | 1 ⊢ (𝜑 → 𝐴 ⊆ 𝐴) |
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