scholarly journals Kant and Russell on Leibniz’ Existential Assertions

Sophia ◽  
2021 ◽  
Author(s):  
Alessandro Rossi
Keyword(s):  
New York ◽  
A Priori ◽  
The One ◽  

AbstractLeibniz believed in a God that has the power to create beings and whose existence could be a priori demonstrated. Kant (KrV, A 592-602/B 620-630) objected that similar demonstrations all presuppose the false claim that existence is a real property. Russell (London and New York: Routledge, 1992) added that if existence were a real property Leibniz should have concluded that God does not actually have the power to create anything at all. First, I show that Leibniz’ conception of existence is incompatible with the one that Russell presupposes. Subsequently, I argue that on Leibniz’ conception of existence Russell’s objection is immediately undermined.

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Luke Corcoran ◽  
Florian Loebbert ◽  
Julian Miczajka ◽  
Matthias Staudacher

Abstract We extend the recently developed Yangian bootstrap for Feynman integrals to Minkowski space, focusing on the case of the one-loop box integral. The space of Yangian invariants is spanned by the Bloch-Wigner function and its discontinuities. Using only input from symmetries, we constrain the functional form of the box integral in all 64 kinematic regions up to twelve (out of a priori 256) undetermined constants. These need to be fixed by other means. We do this explicitly, employing two alternative methods. This results in a novel compact formula for the box integral valid in all kinematic regions of Minkowski space.


Author(s):  
Donnchadh O’Conaill

AbstractOne of the most widely-discussed arguments against physcialism appeals to the conceivability of zombies, being which are physically or functionally identical to humans but which have no conscious experiences. Philip Goff (Philos Phenomenol Res 81(1): 119–139, 2010; Consci Cognit 21(2): 742–746, 2012a; in Sprevak M, Kallestrup J (eds) New waves in philosophy of mind. Palgrave, 2014) has recently presented a number of different anti-physicalist arguments appealing to the conceivability of ghosts, entities whose nature is exhausted by their being conscious. If ghosts are conceivable, this would rule out a priori physicalism. If the conceivability of ghosts entails that they are metaphysically possible, then this forms the basis for arguments against a posteriori physicalism. Drawing on work on conceivability by Peter Kung (Philos Phenomenol Res 81(3):620–663, 2010, Noûs 50(1): 90–120, 2016) and my own discussion of arguments which appeal to the conceivability of zombies (O’Conaill in Mihretu P Guta (ed) Consciousness and the ontology of properties. Routledge, New York, 2019), I shall argue that ghosts are conceivable, but that what allows us to conceive of them (our ability to make certain stipulations about the scenarios we conceive) undermines the belief that conceivability is a reliable guide to possibility. While this does not undermine Goff’s argument against a priori phyiscalism, it suggests that a posteriori physicalists need not be haunted by ghosts.


2020 ◽  
Vol 2020 (8) ◽  
Author(s):  
I. L. Buchbinder ◽  
E. A. Ivanov ◽  
B. S. Merzlikin ◽  
K. V. Stepanyantz

Abstract We apply the harmonic superspace approach for calculating the divergent part of the one-loop effective action of renormalizable 6D, $$ \mathcal{N} $$ N = (1, 0) supersymmetric higher-derivative gauge theory with a dimensionless coupling constant. Our consideration uses the background superfield method allowing to carry out the analysis of the effective action in a manifestly gauge covariant and $$ \mathcal{N} $$ N = (1, 0) supersymmetric way. We exploit the regularization by dimensional reduction, in which the divergences are absorbed into a renormalization of the coupling constant. Having the expression for the one-loop divergences, we calculate the relevant β-function. Its sign is specified by the overall sign of the classical action which in higher-derivative theories is not fixed a priori. The result agrees with the earlier calculations in the component approach. The superfield calculation is simpler and provides possibilities for various generalizations.


1984 ◽  
Vol 98 (2) ◽  
pp. 98-109 ◽  
Author(s):  
J. Bruyn

AbstractFrom 1911 to 1961 Félix Chrétien, secretary to François de Dinteville II, Bishop of Auxerre in Burgundy, and from 1542 onwards a canon in that town, was thought to be the author of three remarkable paintings. Two of these were mentioned by an 18th-century local historian as passing for his work: a tripych dated 1535 on the central panel with scenes from the legend of St. Eugenia, which is now in the parish church at Varzy (Figs. 1-3, cf. Note 10), and a panel dated 1550 with the Martyrdom of St. Stephen in the ambulatory of Auxerre Cathedral. To these was added a third work, a panel dated 1537 with Moses and Aaron before Pharaoh, which is now in New York (Figs. 4-5, cf. Notes I and 3). All three works contain a portrait of François de Dinteville, who is accompanied in the Varzy triptych and the New York panel (where he figures as Aaron) by other portrait figures. In the last-named picture these include his brothers) one of whom , Jean de Dinteville, is well-known as the man who commissioned Holbein's Ambassadors in 1533. Both the Holbein and Moses and Aaron remained in the family's possession until 1787. In order to account for the striking affinity between the style of this artist and that of Netherlandish Renaissance painters, Jan van Scorel in particular, Anthony Blunt posited a common debt to Italy, assuming that the painter accompanied François de Dinteville on a mission to Rome in 1531-3 (Note 4). Charles Sterling) on the other hand, thought of Netherlandish influence on him (Note 5). In 1961 Jacques Thuillier not only stressed the Northern features in the artist's style, especially in his portraits and landscape, but also deciphered Dutch words in the text on a tablet depicted in the Varzy triptych (Fig. I) . He concluded that the artist was a Northerner himself and could not possibly have been identical with Félix Chrétien (Note 7). Thuillier's conclusion is borne out by the occurrence of two coats of arms on the church depicted in the Varzy triptych (Fig. 2), one of which is that of a Guild of St. Luke, the other that of the town of Haarlem. The artist obviously wanted it to be known that he was a master in the Haarlem guild. Unfortunately, the Haarlem guild archives provide no definite clue as to his identity. He may conceivably have been Bartholomeus Pons, a painter from Haarlem, who appears to have visited Rome and departed again before 22 June 15 18, when the Cardinal of S. Maria in Aracoeli addressed a letter of indulgence to him (without calling him a master) care of a master at 'Tornis'-possibly Tournus in Burgundy (Note 11). The name of Bartholomeus Pons is further to be found in a list of masters in the Haarlem guild (which starts in 1502, but gives no further dates, Note 12), while one Bartholomeus received a commission for painting two altarpiece wings and a predella for Egmond Abbey in 1523 - 4 (Note 13). An identification of the so-called Félix Chrétien with Batholomeus Pons must remain hypothetical, though there are a number of correspondences between the reconstructed career of the one and the fragmentary biography of the other. The painter's work seems to betray an early training in a somewhat old-fashioned Haarlem workshop, presumably around 1510. He appears to have known Raphael's work in its classical phase of about 1515 - 6 and to have been influenced mainly by the style of the cartoons for the Sistine tapestries (although later he obviously also knew the Master of the Die's engravings of the story of Psyche of about 1532, cf .Note 8). His stylistic development would seem to parallel that of Jan van Scorel, who was mainly influenced by the slightly later Raphael of the Loggie. This may explain the absence of any direct borrowings from Scorel' work. It would also mean that a more or less Renaissance style of painting was already being practised in Haarlem before Scorel's arrival there in 1527. Thuillier added to the artist's oeuvre a panel dated 1537 in Frankfurt- with the intriguing scene of wine barrels being lowered into a cellar - which seems almost too sophisticated to be attributed to the same hand as the works in Varzy and New York, although it does appear to come from the same workshop (Fig. 6, Note 21). A portrait of a man, now in the Louvre, was identified in 197 1 as a fragment of a work by the so-called Félix Chrétien himself (Fig. 8, Note 22). The Martyrdom of St. Stephen of 1550 was rejected by Thuillier because of its barren composition and coarse execution. Yet it seems to have too much in common with the other works to be totally separated, from them and may be taken as evidence that the workshop was still active at Auxerre in 1550.


1936 ◽  
Vol 63 (3) ◽  
pp. 353-378 ◽  
Author(s):  
Ch'uan-K'uei Hu ◽  
Paul D. Rosahn ◽  
Louise Pearce

Experiments are reported in which it was shown that rabbits which had recovered from experimental or spontaneous rabbit pox were refractory to inoculation of pox virus injected by various routes, and in addition did not develop clinical manifestations of the disease under conditions of exposure to florid cases of pox. It was found that pox recovered rabbits were susceptible to inoculation with the virus of virus III disease of rabbits and that virus III recovered rabbits could be successfully inoculated with pox virus. Furthermore, virus III recovered rabbits developed pox when subjected to room exposure in the same manner as did normal rabbits. It thus appears that there is no specific relationship between the two viruses. Rabbits which had recovered from experimental or spontaneous pox were found to be just as susceptible to inoculation with the virus of infectious myxoma of rabbits as were normal rabbits, a result which demonstrates that there is no specific relationship between these viruses. Rabbits which had recovered from experimental or spontaneous pox were refractory to inoculation with culture dermovaccine virus, but vaccine recovered rabbits were not completely refractory to inoculation with pox virus. Under conditions of exposure to clinical cases of pox, adult vaccine immune rabbits did not develop clinical manifestations of pox, but young, recently weaned vaccinated rabbits did contract mild but definite clinical pox. Experimental pox recovered rabbits were partially refractory to inoculation with neurovaccine virus and neurovaccine recovered rabbits were partially refractory to inoculation with pox virus. The refractory condition of the pox immune rabbits appeared to be more pronounced than that of the neurovaccine immunes. The cutaneous lesions which developed from the intradermal injection of pox, neurovaccine, and culture vaccine viruses showed definite differences with respect to the rate and persistence of active growth, amount of edema, hemorrhage, and necrosis, and the degree of tissue destructiveness. These features were most pronounced in the lesions of pox virus and were least marked in the lesions of culture vaccine virus. The differences were particularly apparent in normal rabbits, but they were also present in the lesions which developed in immune animals. It was found that the calf was susceptible to inoculation with pox virus applied to a scarified skin area. There were many similarities in the appearance and course of the pox lesions to those resulting from culture vaccine virus, the New York Board of Health vaccine, and neurovaccine virus similarly inoculated. But the pox lesions were most numerous, much the largest and most destructive, and by far the most persistent while next in order were those of the Board of Health dermovaccine. The results of these various experiments showed that a close relationship obtains between pox virus, on the one hand, and vaccine virus and neurovaccine virus, on the other, but it cannot be said that pox virus is identical in all respects with either one of these viruses. The findings indicated that the relationship between pox and neurovaccine viruses is closer than that between pox and culture vaccine viruses. Upon the basis of the results observed in culture (dermo) vaccine immune rabbits inoculated with or exposed to pox, it appeared that vaccination with vaccine virus offered a method of protection against rabbit pox.


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