Introductory fragments - table of contents, introduction. Part 1 Orientation: orientational fragments - kinds and features of relevant and paraconsistent logics, wide-ranging philosophical applications; an orientational survey of sociative logics - type of connection, and sorts of sociative and relevant logics, a working classification; preliminary western history of sociative logics - the initial classical period, the richer classical period, the early medieval period, later medieval theories of implication, modernity, enlightenment, and logical stagnation, the contemporary period. Part 2 Reasoning and computation: on reasoning - reason-giving connectives, ponible reasoning, demonstrative reasoning, ponible reasoning systems, double-barrelled analyses, brief glimpses beyond, appendix; relevant containment logics and certain frame problems of AI - reasons for the enterprise, initial relevant containment logics, soundess and completeness, upgrading the logical theory, an application; computability is logic-relative - introduction, inside and outside classical settings, inconsistency, dialethic machines, diagonalisation; fragments - part 2 - pararelevant logics - cognitive and computing science. Part 3 Philosophy of science, probability and non-deductive logic: confirmation without paradoxes - failing paradoxes of confirmation, variations upon prominent paradoxes, hypothetico-deductivism, towards basic relevant logic and semantics, proceeding within conditionally - containment confirmation, Goodman's paradoxes, converse consequences and connexive confirmation, interim conclusion, parallel sympathetic enterprise; conditional probability as the probability of a conditional - locating a probability conditional, Boolean models; causes as an implication - principles of causal implication, beginning on a typology, an organising process account, running out initial semantics, more fully relevant causal logics, corollaries, problems, further ado; fragments - part 3 - induction as the converse of deduction, non-demonstrative reasoning and non-ponible logics, abduction, explanation and discovery, outside standard deductive theory. Part 4 Metaphysics and epistemology: freedom without determinism - a main argument flawed, other determinism and arguments, appendices; knowledge as justified true belief; ubiquitous vagueness without embarrassment - the Sorites paradox, further issues, on characterising vagueness, identity and intentional functions, vague objects; fragments - part 4 - the enlightenment project.