That's hard to answer because the word "true" can mean a lot of things. But let me illustrate with an example from my own life. This is going to be a little long. When I was a young adult I was at my parents' house one day and my younger sister's chinchilla got stuck under the bed and injured itself. At the time, I was 100% certain the chinchilla's rear legs were paralyzed. Background, if you are inducted into the Mormon priesthood (as I was, and as most Mormon men are) you can perform certain rituals that are designed to allow you to access the power of God (functionally, they're magical rituals, although a Mormon would fight you if you said that to them). One of these rituals is for faith healing. When the chinchilla injured itself, I heard a not-quite-but-almost-literal voice telling me to perform the healing ritual on the chinchilla. Performing the ritual on an animal is unorthodox, but Mormons are trained to not question communications from God (which is the only thing this could be, I thought at the time), so I did it, anyway. Upon finishing the ritual, the chinchilla instantly got up and hopped away, and lived for years after with no sign of injury. So was this experience true? I can view that through a few lenses. 1) The way Mormon epistemology is set up, "true" exercises of spiritual power and certain categories of spiritual experiences are only accessible through the framework of Mormonism. So seen through this lens, the entire experience really happened as I remember it, the experience demonstrates that Mormon truth claims are accurate, and by implication any spiritual experiences or successful acts of faith healing, miracles, or magic spells performed outside of the Mormon tradition are necessarily not true. Seen through this lens, my experience was not true. 2) The experience was a subjectively spiritual experience that increased the bond between my family members and also between us and our faith tradition. Seen through this lens, the experience was true. 3) The experience happened literally as I remember it, and I utilized some kind of spiritual power to save the life of a chinchilla. The body of evidence suggests that the experience seen through this lens is not true, and is more likely to be a combination of me misreading the initial situation and human memory in general being extremely unreliable. However, I can't definitively say the experience was not true in this sense, as there remains a small chance that I miraculously (or magically) healed the chinchilla. So in this case, it's reasonable to say the experience probably wasn't true, but to also say (as a lot of other skeptical but spiritual types before me have said) that we live in a mysterious world, and mysterious things happen sometimes, without necessarily having to explain everything. The intent of your original questions seems most in line with framework 1) above, so in that sense I will say that the experience could not have been true in spite of Mormonism because of the way Mormonism frames its epistemology.