
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 that \(x, y, z\) are all positive real numbers and satisfy \(x + y + z = 1\), find the minimum value of the function \(f(x, y, z) = \frac{3x^2 - x}{1 + x^2} + \frac{3y^2 - y}{1 + y^2} + \frac{3z^2 - z}{1 + z^2}\), and provide a proof.

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