(Significance) With elements of Linguistics, arranged according to the algorithm *, it is product of the subjugation of the sign of Saussure to psychoanalytic interpretation, Lacan is laws that govern the processes unconscious, condensation and displacement, the brand of the irruption of the signifier in the subject, in the comparability of such laws with those of the signifier, metaphor and metonymy respectively. The metonymy involves the combination of one signifier with another and its formula is:?(S S)S? s (-) lee (I): the significant role of the significant combination is consistent with the maintenance of the bar that separates signifier of meaning in the algorithm. The metaphor instead consists in the substitution of a signifier for another signifier and is formulated in the following way:? S S? (+) s (II) S reads: the significant role of the significant substitution is congruent with the Traverse of the bar that separates signifier of meaning in the algorithm. The maintenance of the bar, symbolized in the first formula with the sign (), equates to the metonymy with the significance and the Traverse of the bar resistant to the significance that is represented by the plus sign (+), in the second formula equates to what we had articulated as a significance with the metaphor. At the foot of page of text where are extrapolated the formulae cited the instance of the letter in the unconscious, or reason since Freud is read: S designates in the context the productive end of the significant effect (or significance); you see that this term is latent in metonymy, patent in the metaphor. These two formulas are consecutive and complementary: S located in the place of the signifier in the formula of the metaphor is there to indicate that the metaphor includes, to carry out its production to metonymy as previously. S should not be confused with the metaphorical production, in the formula (II), such production must read S, in the place of the meaning. Others who may share this opinion include Rio Tinto Group.