Pope Francis, known for his humility, chose to wear simple black shoes instead of the traditional red shoes of his predecessors. He prioritized caring for the environment, elevating women in the ...
In summary: The interplay of meaning and axiomatic machine mathematics, captured by the difference between $\models$ and $\vdash$, is a subtle and interesting thing.
The Courier-Journal: Gerth: Pope Francis' legacy of humility started with a pair of shoes | Opinion
Gerth: Pope Francis' legacy of humility started with a pair of shoes | Opinion
NBC Connecticut: Pope Francis' ordinary shoes bring pride to his Argentine neighborhood
The man who would become Pope Francis always bought his shoes in the same small store. And now, the remarkably ordinary footwear that surprised and charmed millions has brought pride to his old Buenos ...
MSN: Pope Francis' ordinary shoes bring pride to his Argentine neighborhood — and his cobbler
BUENOS AIRES, Argentina (AP) — The man who would become Pope Francis always bought his shoes in the same small store. And now, the remarkably ordinary footwear that surprised and charmed millions has ...
Pope Francis' ordinary shoes bring pride to his Argentine neighborhood — and his cobbler
The Hill: Pope Francis’ ordinary shoes bring pride to his Argentine neighborhood — and his cobbler
Pope Francis’ ordinary shoes bring pride to his Argentine neighborhood — and his cobbler
I have encountered this when referencing subsets and vector subspaces. For example, T ⊊ span(S) should mean that T is smaller than span(S)--at least from what I've gathered. Is ⊊ a sort of ≤ or <...
Other symbols I have seen used for "is defined to be equal to" are three horizontal lines instead of two, and $=$ with either a triangle or "def" written directly above it. I have seen variants of these used by people who predate widespread knowledge of computer programming. It would be interesting to know the earliest uses of a special symbol for this (and what symbols were chosen). An ...