This task requires an AI language model. Please provide the guidelines to generate a blog post according to the rules that you have mentioned above.

Rules for puzzle game "Content Creation" 1. There are four products namely Elite Gym Visuals (EGV), BodyPulse, MuscleMax and FitnessFlex 2. Each product has different features, prices, and volumes of AI content generated. 3. You need to make an optimal decision on which product to use if: - If the product is high-yield but expensive, it's worth it. - If a product has a lower volume but can be optimized for SEO, it's better. - If all other rules are followed, the product with most user feedback should be selected. 4. The information you have: 1. EGV is more expensive than BodyPulse and MuscleMax. 2. FitnessFlex has less volume of AI content compared to EGV and BodyPulse. 3. For SEO optimization, only the product with the highest quality of copywriting can be used. 4. User feedback favors: - EGV with 80% positive comments - BodyPulse with 85% positive comments - FitnessFlex with 60% positive comments. 5. The prices and volumes for each product are as follows: EGV: $80, 50000 words BodyPulse: $50, 40000 words MuscleMax: $75, 45000 words FitnessFlex: $60, 35000 words 6. Quality of copywriting is highest for BodyPulse with 70%. 7. It's confirmed that no two products are optimized or same in price and volume.

Question: Which product should be used?

By the property of transitivity, since EGV is more expensive than BodyPulse and MuscleMax (rule 1), it can't be used for optimization as it will be too costly (rule 3).

Using proof by exhaustion, we consider all other products. Fitnessflex has less volume but higher quality of copywriting compared to others (rules 4 & 5).

We now know that only two products are left: BodyPulse and MuscleMax.

To decide between these two remaining products, let's apply proof by contradiction. Assume for a moment that BodyPulse is the optimal product. But its volume of AI content is less than EGV (rule 3).

Now, consider the property of transitivity again. If BodyPulse has more user feedback than Fitnessflex (rule 4 & 5), and Fitnessflex has more feedback than MuscleMax (step 1 - step 2 contradiction), then by property of transitivity, BodyPulse should be preferred over MuscleMax.

From steps 1 to 6, we can use inductive logic to conclude that since all other products are eliminated and the remaining products meet the requirements, BodyPulse is the optimal choice for generating AI content.

Answer: The product that should be used is BodyPulse.