Here come the Keynesians... 
After just bashing the "keynesian" definition of inflation, you segue right into your own piss-poor definition. Money supply inflation is when the total money supply increases. No more, no less. It does not necessarily mean a change in the value, because if the money supply increases at the exact same rate as the increase in demand, there is no change in value.
Money Supply Inflation refers to the devaluation of a currency due to the increase of the Money supply. Whereas, an increase in the Money Supply is exactly that, "when the total money supply increases". The former is an effect of the latter, and I wasn't referring to the latter.
Now to consequently address the demand argument...
In any real economy, there is no guarantee that demand exists (maybe in the keynesian paradise, but that's about it). However, there is a guarantee that the Money Supply will increase.
Money Supply Inflation (or inflation due to an increase in the money supply) exists regardless of demand, contributing to the devaluation of the currency. Demand simply helps to stabilize or increase the value and price. Sure, they can offset when they're equal, but that doesn't mean inflation due to an increase in the Money Supply doesn't exist.
So I will argue that Money Supply Inflation does mean a change in the value.
First you say it will never occur, then you say well it could and does happen.
Keyword "essentially". It happens, sure, but on a scale so small that it's negligible. The details here aren't a huge issue, I'll edit that to be more specific. Though, I think most other people get it...
The set decrease in the generation rate would be called "money supply disinflation" if you want to, god forbid, use another modern economics term. And exchanging money for services at a faster rate than the generation rate has no deflationary effect, only the demand for currency itself affects its value. If the velocity of money increases to account for increasing exchange, there need not be any change in value.
That statement was regarding the exchange of FX for BTC ie demand for BTC that is greater, not faster. That one can be clarified, as well.
Again, exchanging does not increase value, demand for more currency will.
You're right, demand can increase the value of a currency... but someone has to have a supply for that demand... and god forbid the two got together to have an "exchange" *gasp*! They would have unknowingly increased the value of both items!
So yes exchanging does increase value, and it doesn't have to be between currencies. When the first pizza was bought with 10,000 Bitcoins, they had (maybe unknowingly) set a value of Bitcoins at around $10/10,000 BTC, or 10,000BTC/pizza. This would go on for a while until the value is where we are today.
Sure, I could edit some things to be more specific. Though, I have a feeling that won't satisfy your issues with the first argument...
MoneySupply-Inflation is when the value of Bitcoin decreases when the total supply of Bitcoin increases. In our current state, this is at a generation rate of 25 BTC every 10 minutes.
After just bashing the "keynesian" definition of inflation, you segue right into your own piss-poor definition. Money supply inflation is when the total money supply increases. No more, no less. It does not necessarily mean a change in the value, because if the money supply increases at the exact same rate as the increase in demand, there is no change in value.
Money Supply Inflation refers to the devaluation of a currency due to the increase of the Money supply. Whereas, an increase in the Money Supply is exactly that, "when the total money supply increases". The former is an effect of the latter, and I wasn't referring to the latter.
Now to consequently address the demand argument...
In any real economy, there is no guarantee that demand exists (maybe in the keynesian paradise, but that's about it). However, there is a guarantee that the Money Supply will increase.
Money Supply Inflation (or inflation due to an increase in the money supply) exists regardless of demand, contributing to the devaluation of the currency. Demand simply helps to stabilize or increase the value and price. Sure, they can offset when they're equal, but that doesn't mean inflation due to an increase in the Money Supply doesn't exist.
So I will argue that Money Supply Inflation does mean a change in the value.
MoneySupply-Deflation will essentially never occur. It is when the value of Bitcoin increases when the total supply of Bitcoin decreases. This may happen, say, when someone loses their private key and all the BTC associated with it are lost.
First you say it will never occur, then you say well it could and does happen.
Keyword "essentially". It happens, sure, but on a scale so small that it's negligible. The details here aren't a huge issue, I'll edit that to be more specific. Though, I think most other people get it...
That being said, there is a SET DECREASE in the generation rate of BTC, so you have sort of a "deflationary effect" in the value, as long as more exchange occurs for BTC at a rate which is faster than that set generation rate.
The set decrease in the generation rate would be called "money supply disinflation" if you want to, god forbid, use another modern economics term. And exchanging money for services at a faster rate than the generation rate has no deflationary effect, only the demand for currency itself affects its value. If the velocity of money increases to account for increasing exchange, there need not be any change in value.
That statement was regarding the exchange of FX for BTC ie demand for BTC that is greater, not faster. That one can be clarified, as well.
When all 21 million coins are produced, the MoneySupply will be neutral, and the value will continue to increase (prices will decrease, consequently), as long as people continue to exchange in BTC.
Again, exchanging does not increase value, demand for more currency will.
You're right, demand can increase the value of a currency... but someone has to have a supply for that demand... and god forbid the two got together to have an "exchange" *gasp*! They would have unknowingly increased the value of both items!
So yes exchanging does increase value, and it doesn't have to be between currencies. When the first pizza was bought with 10,000 Bitcoins, they had (maybe unknowingly) set a value of Bitcoins at around $10/10,000 BTC, or 10,000BTC/pizza. This would go on for a while until the value is where we are today.
Sure, I could edit some things to be more specific. Though, I have a feeling that won't satisfy your issues with the first argument...