The term "irrefragable" has been employed in literature to convey a sense of undeniable veracity or unchallengeable authority, yet its nuances vary by context and authorial tone. In Paramahansa Yogananda’s work, for instance, it evokes an almost mystical quality of insight and spiritual infallibility, as in his reference to an "antenna of irrefragable insight" that connects the seeker with his guru (Example [1]). Jules Verne similarly employs the term to underscore the solidity of logical evidence, referring to an "irrefragable proof" that one might rely upon without doubt (Example [2]). Thomas Carlyle extends the idea into the realm of philosophy and belief by questioning whether we can still cherish the old and unwavering spirit of transcendentalism, labeling it as "irrefragable" (Example [3]). In contrast, Mark Twain adopts a more satirical stance by critiquing the opportunistic appeal of tradition, noting that it is only cited as "irrefragable truth" when it conveniently serves one's purposes (Example [4]). Together, these examples reveal how "irrefragable" can denote both a sincere assertion of incontestable reality and a rhetorical device subject to ironic scrutiny.