
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
In space, let \\(a\\), \\(b\\), and \\(c\\) represent three different lines, and \\(\gamma\\) represent a plane. The following four propositions are given:  
\\(①\\) If \\(a \parallel b\\) and \\(b \parallel c\\), then \\(a \parallel c\\);  
\\(②\\) If \\(a \perp b\\) and \\(b \perp c\\), then \\(a \perp c\\);  
\\(③\\) If \\(a \parallel \gamma\\) and \\(b \parallel \gamma\\), then \\(a \parallel b\\);  
\\(④\\) If \\(a \perp \gamma\\) and \\(b \perp \gamma\\), then \\(a \parallel b\\);  
Among these, the numbers of the true propositions are \_\_\_\_\_\_.

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