If the proposition A is true in y, then the formula <π>A is true in x: i.e., in the state x there is a possible execution of the program α that ends in a state satisfying A. One recognizes in <π> a modality reminiscent of the modality of possibility (often noted ◊) of modal logic.
They appear in that order, for example, in his division of the modalities into possibility, actuality, and necessity; in his division of signs into icons, indexes, and symbols; in the division of symbols into terms, propositions, and arguments; and in his division of arguments into abductions, inductions, and deductions.
Thus, in this first stage of the actualist treatment of modality, ordinary possibility claims are analyzed in terms of actually existing states of affairs.
When the same tasks and stimuli are presented through different modalities, several possibilities exist for neural network organization.
Hartmann's analytic development of ontology begins with the theory of ontological modalities elaborated in Possibility and Actuality.
The temporal modalities of future possibility and past necessity are indistinguishable from the control operators ◊,□, prooftheoretically and as far as their relational interpretation is concerned.
Recent advances in different imaging modalities offer the possibility to quantify myocardial perfusion and resistance in absolute terms and to correct for some of these confounders.
Multimodality molecular imaging combined of two or more modalities offers the possibility to minimize the potential drawbacks of using each imaging modality alone, to integrate modality-specific strengths, and to gain a more complete picture of graft behavior.
Thirdly, in the CONFIRM registry, CAD was defined using CCTA and not using invasive coronary angiography or other imaging modalities; therefore, the possibility of false-positive or false-negative CCTA findings exists despite the performance of CCTA by international experts.
