The he was on namek when he returned home from Yadrat?

Yeah, it seemed pretty implied

When?

Chances are he did, because he did train with the Yardrati... It was also stated that they were weak pretty much, so it was more than likely not necessarily hard and heavy training, but he had to train his mind, body, and ki to be able to learn the IT technique, so I would say that he was stronger, even if by a small margin.... He may have only been 5% stronger who knows...

Also keep in mind that Goku on Namek against Freeza as a SSJ was not at full strength/health because of all the damage he took against Freeza before going SSJ... So even had he not increased his over all strength through training, a fresh, 100% rested and healthy Goku would still be stronger than he actually was on Namek at the time...

Meaning the gap between Cooler and Frieza isnt that big.

Of course he was stronger when he came back from Yardtrat. It wouldn't make sense if he wasn't. He learned the Instant Transmission technique, he learned how to control becoming Super Saiyan, etc. And besides, you don't become weaker even if you don't train in that short period of time. It was only about a year and a half that Goku was gone. Planet Namek exploded December 24, 762 and he came back August 764. Where did I get that from? Official timeline.

He learned to summon at will the Super-Saiyan state. He learned Instant Transmission/Translocation/Movement.

The guy recovered, then trained. There's no reason to think he'd be weaker, but I wouldn't assume he was any stronger per se, just more in control.

It was never really implied I don't think Zangetsu, but all the same, he did spent some time on Yardrat learning instantenous movement, and Goku isn't the type to not train whenever he can so I say yes, he definitely got stronger. It's a very logical assumption to make really, can't go wrong...

i see...

there isn't a real proof just assumptions .

Technically, all of our responses about training are, yes, but it is the most logical, rational, realistic answer that is as close to being factual without being stated fact. Makes more sense than to say he got weaker or gained no strength at all.

It is fact however, not assumption, that he would be stronger back on Earth, at 100% health, than he was on Namek as I explained.... So it is not all assumption....

It's logical yes but far away to be called factual.He could have just learned a new attack and still be the same strength in his SSJ orm on earth and on namek 100 % healthy

Possibly, but you would be very hard pressed to find anyone with that logic, as it would be deemed illogical by most. So factual either way, no, but logic goes a long way when it comes to people agreeing/disagreeing and people saying things that make no sense as the most likely outcome.

The fact is Goku has never once trained and not gotten an increase in strength from it, so, logic would dictate that training with the Yardratis would be no different, even if it was a very small increase.

I also have him being decently stronger after Yadrat because it does seem logical,it's Goku after all, but i just wanted to see if there's like a 100% proof.

Yeah, I figured you would.... You're one of the logical ones..... Usually...

But, yeah, I don't think it was ever directly stated/proven to be the case, but IMO, and I think you will agree, stuff like this doesn't need to be spelled out all the time, thus why I say it is as close to being factual without actually being stated fact....

I agree