@article{201811.0301,
	doi = {10.20944/preprints201811.0301.v6},
	url = {https://doi.org/10.20944/preprints201811.0301.v6},
	year = 2019,
	month = {January},
	publisher = {Preprints},
	author = {Apoloniusz Tyszka},
	title = {On Sets ${\mathcal X} \subseteq$ $\mathbb N$ for Which We Know an Algorithm That Computes a Threshold Number $t({\mathcal X}) \in$ $\mathbb N$ Such That ${\mathcal X}$ Is Infinite If and Only If ${\mathcal X}$ Contains an eLement Greater Than $t({\mathcal X})$},
	journal = {Preprints}
}