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Description: Addition with the zero vector. (Contributed by NM, 16-Aug-1999) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | ax-hvaddid | ⊢ ( 𝐴 ∈ ℋ → ( 𝐴 +ℎ 0ℎ ) = 𝐴 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 0 | cA | ⊢ 𝐴 | |
| 1 | chba | ⊢ ℋ | |
| 2 | 0 1 | wcel | ⊢ 𝐴 ∈ ℋ |
| 3 | cva | ⊢ +ℎ | |
| 4 | c0v | ⊢ 0ℎ | |
| 5 | 0 4 3 | co | ⊢ ( 𝐴 +ℎ 0ℎ ) |
| 6 | 5 0 | wceq | ⊢ ( 𝐴 +ℎ 0ℎ ) = 𝐴 |
| 7 | 2 6 | wi | ⊢ ( 𝐴 ∈ ℋ → ( 𝐴 +ℎ 0ℎ ) = 𝐴 ) |