Find out the error in the following names and write the correct IUPAC names:
2-methyl-1-carboxypentene-3.

Explanation

To find the error in the given name "2-methyl-1-carboxypentene-3" and write the correct IUPAC name, we can follow these steps:

### Step 1: Analyze the Given Name
The name "2-methyl-1-carboxypentene-3" suggests that the compound has:
- A pentene backbone (5 carbon atoms with a double bond)
- A methyl group on the second carbon
- A carboxylic acid group (COOH) on the first carbon

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