Smullyan, R. (2025, October 9). Raymond Smullyan quote. Quotesia. Retrieved from https://quotesia.com/raymond-smullyan-quote/596281
Smullyan, Raymond. “Raymond Smullyan quote”. Quotesia. 9 Oct. 2025: https://quotesia.com/raymond-smullyan-quote/596281.
Smullyan, R. (2025). Quotesia [Online]. Available at: https://quotesia.com/raymond-smullyan-quote/596281 (Accessed: October 9 2025).
Smullyan, Raymond. “Raymond Smullyan quote” Quotesia. https://quotesia.com/raymond-smullyan-quote/596281 (accessed October 9, 2025).
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