function construction: why does this boolean calculation get stuck?

I want to build a boolean function that takes three parametric functions. I don't really know how to write a function for this, but this seems to work for me as long as the parameter is t.

isCorrect(f1_, f2_, f3_) := Assuming(t >= 0, Refine(If(
                             1 + f1 + f2 + f3 >= 0 && 
                             1 + f1 - f2 - f3 >= 0 && 
                             1 - f1 + f2 - f3 >= 0 && 
                             1 - f1 - f2 + f3 >= 0, True, False)))

For some functions it gives the correct value.

In():= isCorrect(Cos(t), Cos(t), 1)
Out()= True

But for some examples like the following, it does not generate anything.

In():= isCorrect(Exp(-t) Cos(t), Exp(-t), Exp(-t))
Out()= If(1 - 2 E^-t + E^-t Cos(t) >= 0, True, False)

But I know that Plot(1 - 2 E^-t + E^-t Cos(t), {t,0,10}) returns the following and is always nonnegative for t positive.

enter the image description here

So i don't know why isCorrect does not come out True so.

Any suggestion would be appreciated.

EDIT:

In():= Assuming(t >= 0, Reduce(1 - 2 E^-t + E^-t Cos(t) >= 0))` 
Out():= Cos(t) (Element) Reals && ((E^-t < 0 && Cos(t) <= E^t (-1 + 2 E^-t)) || E^-t == 0 || (E^-t > 0 && Cos(t) >= E^t (-1 + 2 E^-t)))

Why can't you solve it? E^-t It can never be negative. Too, Cos(t) it's always real since t it is explicitly assumed to be positive.

magento 2.3.4 installation stuck to 99% without error when installing admin user

magento 2.3.4 installation stuck to 99% without error when installing admin user

enter the image description here

blockchain – Bitcoin stuck in the bitcoin core

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I tried to retrieve my wallet through a public / private key, but it doesn't work on blockchain (it says my wallet is empty) or electrum. Also, the transaction with which I received my money cannot be found with insight.bitpay, but I can find it on Blockchain.
I can't understand I have my public and private wallet key, is it possible that I lose my currency?

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I know that to enter autofocus mode, the lens ring must be removed. However, mine is completely stuck! I am a member of the Fuji VIP program and have previously received a defective lens. I got this Fuji XF 35mm 1.4 lens 2 years ago, but I rarely use autofocus. The first time I play with it, I notice that the focus ring is completely stuck and will not go into autofocus mode. Any suggestion? I have no idea how to fix this if it is even repairable.

How do I unfreeze my iPhone 7 when it is stuck on the lock screen? What should I do?

My iPhone screen is completely frozen. I pressed the power button just to turn off my phone, but when it came back on it was still frozen, so I have no way of accessing my phone. emphasized text

Fuji 35mm 1.4 stuck in manual mode?

I know that to enter autofocus mode, the lens ring must be removed. However, mine is completely stuck! I am a member of the Fuji VIP program and have previously received a defective lens. I got this lens 2 years ago, but I rarely use autofocus. The first time I play with it, I notice that the focus ring is completely stuck and will not go into autofocus mode. Any suggestion? I have no idea how to fix this if it is even repairable.

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This does not apply to me, but I am curious and it could apply to someone else.

Apparently, Spain is being reasonable regarding travel difficulties, and I suppose other countries are similar. But part of that article is interesting: the five requirements for an extension. I imagine some people cannot meet some of the five requirements there.

Are there any known cases of penalization for staying longer when the "offender" had no way of avoiding it? Or any country that has explicitly declared that it will impose such sanctions despite the "offender's" lack of options?

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Running the job manually will cause the Next Run to advance to the correct scheduled time for a new run, but when the time comes, the job will not run yet.

How do you solve this strange problem?

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After a tutorial to shrink Windows partition from Windows, I ran into some issues on the shrink querymax happened, and they informed me that I needed to use chkdsk because the partition was apparently damaged.

Since then I have tried to boot Windows three times separately, but the chkdsk The "repairs" never exceed 30% (I left it on for two hours straight once to be sure).

I can still start in Ubuntu and I can access all my Windows files from there, but I can't start in Windows.

How do I solve this? Is there a way to boot to skip the chkdsk repair?

2016: SharePoint iOS app, stuck in "Account Settings"

Please note that we are trying to connect to local SharePoint (version 2016) with the iOS mobile app for SharePoint. For the connection, we use corporate Wifi or 4G through VPN.

Once we open the app, we enter the On-Prem URL and then pass the login screen successfully. However, after that, the app goes into a loop with a "Your Account Settings" screen.

By trying the same scenario with the Android version of the app, we can login and explore the SP 2016 instance.

To log in, we use Windows Claims (NTLM) in the web application area.

We look forward to your help and let me know if you need more information.

Best regards,

Vlatko