
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 the sets $P = \{4, 5, 6\}$ and $Q = \{1, 2, 3\}$, define the operation $P \odot Q = \{x | x = p - q, p \in P, q \in Q\}$. Find the number of proper subsets of the set $P \odot Q$.

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