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  2. Electronic receipt - Wikipedia

    en.wikipedia.org/wiki/Electronic_receipt

    The e-receipt helps to connect customers to their in-store purchases. Merchants can issue E-receipts using own mechanisms or use external services specialized on electronic payments. Possible ways of distributing the email receipts may be to send an e-mail , an app , a website / web app , a QR-code or a BLE transmit on mobile.

  3. Advanced emergency medical technician - Wikipedia

    en.wikipedia.org/wiki/Advanced_emergency_medical...

    An advanced emergency medical technician (AEMT) is a provider of emergency medical services in the United States.A transition to this level of training from the emergency medical technician-intermediate, which have somewhat less training, [1] began in 2013 and has been implemented by most states [citation needed].

  4. Electronic ticket - Wikipedia

    en.wikipedia.org/wiki/Electronic_ticket

    Customers can print out or may be provided with a copy of a e-ticket itinerary receipt which contains the record locator or reservation number and the e-ticket number. It is possible to print multiple copies of an e-ticket itinerary receipt. Besides providing itinerary details, an e-ticket itinerary receipt also contains:

  5. Emergency medical technician - Wikipedia

    en.wikipedia.org/wiki/Emergency_medical_technician

    An emergency medical technician (often, more simply, EMT) is a medical professional that provides emergency medical services. [1] [2] EMTs are most commonly found serving on ambulances and in fire departments in the US and Canada, as full-time and some part-time departments require their firefighters to at least be EMT certified.

  6. Dominated convergence theorem - Wikipedia

    en.wikipedia.org/wiki/Dominated_convergence_theorem

    Without loss of generality, one can assume that f is real, because one can split f into its real and imaginary parts (remember that a sequence of complex numbers converges if and only if both its real and imaginary counterparts converge) and apply the triangle inequality at the end.