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On the 6th of June 1962, Putnam presented the groundbreaking paper "The Analytic and Synthetic." This publication marked a crucial moment within the realm of philosophy of science as Putnam questioned the conventional distinction between analytical and synthetic statements (Putnam, 1962, p. 361).
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On April 16, 1966, Putnam released "What Theories are Not." In this publication, he doubted the established logical empiricist idea of theories described as groups of sentences (Putnam, 1966, p. 245). Putnam contended that this point of view ignored the changing and developing characteristics of scientific theories. Alternatively, he suggested that theories ought to be comprehended as intricate frameworks involving non-communicative aspects similar models and tools.
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"The Meaning of Meaning,'" printed on 15th March 1975, holds a significant place among Putnam's works. He showcased the mental exercise involving "Twin Earth," that disputed the traditional comprehension concerning meaning as exclusively established by reference (Putnam, 1975, p. 139). Putnam claimed that the definition of words relies on the cultural and linguistic environment during their usage.
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On the 3rd of May 1981, Putnam presented the conceptual experiment of "Brains in a Vat." This study examined significant knowledge-related questions regarding the essence of knowledge and disbelief. Putnam proposed that it is possible that humans are only minds in a container, receiving false sensory information (Putnam, 1981, p. 187). That could result in comprehension about the outside world impracticable.
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On September 19, 1994, Putnam released "Sense, Nonsense, and the Senses". In this written piece, he constructed his theory of conceptual relativity (Putnam, 1994, p. 445). Denying the concept of an unchanging, unbiased truth, Putnam contended that our notions and grasp of the universe are impacted by verbal and societal structures.