
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 an even function $y = f(x)$ that satisfies the condition $f(x + 1) = f(x - 1)$, and when $x \in [-1,0]$, $f(x) = 3^x + 1$, then the value of $f(\log 5)$ is equal to $\boxed{\_\_\_\_\_\_\_\_}$.

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