
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
Among the following statements:
1. The synthetic method is a cause-and-effect method;
2. The synthetic method is a forward reasoning method;
3. The analytical method is a cause-seeking method from the effect;
4. The analytical method is an indirect proof method;
5. The contradiction method is a backward reasoning method.

The correct statements are \_\_\_\_\_ (fill in the sequence numbers).

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