
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given sets $A=\{ x \mid 0 < 2x+a \leq 3 \}$ and $B=\{ x \mid - \frac {1}{2} < x < 2 \}$.

(Ⅰ) When $a=1$, calculate the set $(\complement_{\mathbb{R}} B) \cup A$.

(Ⅱ) If $A \cap B = A$, find the range of the real number $a$.

Present the answer in LaTex format: \boxed{Your answer}
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