Age, Biography and Wiki

Richard Sylvan (Francis Richard Routley) was born on 13 December, 1935 in Levin, New Zealand, is a New Zealand–born philosopher. Discover Richard Sylvan's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 60 years old?

Popular As Francis Richard Routley
Occupation N/A
Age 60 years old
Zodiac Sign Sagittarius
Born 13 December 1935
Birthday 13 December
Birthplace Levin, New Zealand
Date of death 16 June, 1996
Died Place Bali, Indonesia
Nationality New Zealand

We recommend you to check the complete list of Famous People born on 13 December. He is a member of famous philosopher with the age 60 years old group.

Richard Sylvan Height, Weight & Measurements

At 60 years old, Richard Sylvan height not available right now. We will update Richard Sylvan's Height, weight, Body Measurements, Eye Color, Hair Color, Shoe & Dress size soon as possible.

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Who Is Richard Sylvan's Wife?

His wife is Val Plumwood Louise Mirlin

Family
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Wife Val Plumwood Louise Mirlin
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Richard Sylvan Net Worth

His net worth has been growing significantly in 2023-2024. So, how much is Richard Sylvan worth at the age of 60 years old? Richard Sylvan’s income source is mostly from being a successful philosopher. He is from New Zealand. We have estimated Richard Sylvan's net worth, money, salary, income, and assets.

Net Worth in 2024 $1 Million - $5 Million
Salary in 2024 Under Review
Net Worth in 2023 Pending
Salary in 2023 Under Review
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Source of Income philosopher

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Timeline

1935

Richard Sylvan (13 December 1935 – 16 June 1996) was a New Zealand–born philosopher, logician, and environmentalist.

Sylvan was born Francis Richard Routley in Levin, New Zealand, and his early work is cited with this surname.

He studied at Victoria University College of the University of New Zealand (now Victoria University of Wellington), and then Princeton University, before taking positions successively at several Australian institutions, including the University of Sydney.

1966

From early in his career (and for many years after), Sylvan defended a sophisticated Meinong-inspired ontology (which he called "noneism"), first presented in his 1966 paper, "Some Things Do Not Exist."

1970

After several more papers in the 1970s, the theory was given a book-length treatment in 1980, Exploring Meinong's Jungle and Beyond.

The view—also defended in recent years by Priest —utilizes a modal theory including "impossible worlds" to deal with supposed objects, like the "round square."

Sylvan's formulation is logically consistent, and avoids certain paradoxes associated with Meinong's original ontology; although, like many Meinongian views, it faces criticism due to its presumed ontological implausibility.

Outside of logic and metaphysics, Sylvan was a proponent of so-called deep environmental ethics in the study of environmental ethics (following shallow/deep distinction formulated by Arne Næss).

Beginning in the 1970s, Sylvan published several other notable articles and books on environmental ethics and issues, and he co-authored the 1994 book The Greening of Ethics with David Bennett.

From his work in environmental ethics, Sylvan took an interest in anarchism, contributing an often-cited entry on the subject to A Companion to Contemporary Political Philosophy.

Over 170 boxes of Sylvan's papers can be accessed from the Fryer Library collection of The University of Queensland Library.

1971

From 1971 until his death in Bali, Indonesia, he was a fellow at the Research School of Social Sciences (RSSS) at the Australian National University in Canberra.

1972

In 1972, Sylvan (in a paper co-authored with Plumwood) proposed semantics for certain relevant logics that had been developed by American philosophers Nuel Belnap and Alan Ross Anderson.

Together with Robert K. Meyer, Routley turned this into semantics for a large number of logical systems.

Their work in logic work helped make ANU a center for the study of non-classical logic in general.

Routley's work had a particular influence on Graham Priest, a well-known proponent of non-classical logic; Sylvan and Priest edited a well-regarded volume on the topic.

1973

In his important 1973 paper "Is There a Need for a New, an Environmental, Ethic?", he defended a then-unorthodox account of the intrinsic value of the non-human, natural world.

For this he was sometimes considered a defender of deep ecology, but he was in fact very critical of much of the domain.

Further, Sylvan spoke of supporting "regulated markets without capitalism."

1976

Priest in turn influenced Sylvan; they met in 1976 at the Australasian Association of Logic conference in Canberra at a time when Sylvan was doing novel work on dialetheism, the view that some contradictions are true.

Not long after meeting Priest, and then investigating a logic capable of handling such true contradictions, Sylvan also endorsed the view.

Sylvan's studies ranged over a variety of topics in logic and the philosophy of logic.

He wrote important papers on free logic, general modal logic, and natural deduction systems.

However, much of his most important work in logic was dedicated to relevant logic, for which he authored numerous papers (both technical and expository).

1982

Sylvan was married to the philosopher/environmentalist Val Routley (later, Val Plumwood), with whom he worked closely for twenty years before their separation in 1982.

1983

After his divorce from Plumwood, he married Louise Sylvan (née Mirlin) in 1983 and adopted the last name Sylvan (an English word meaning "of the forest") to reflect his love of the forest and commitment to environmentalism.

1996

He died on 16 June 1996 of a massive heart attack.

Sylvan was instrumental in the development and study of relevance logic.