specious argument
logical fallacy
non-argument
presume
unsoundness
sophistry
refuter
pseudoargument
argumentum ad ignorantiam
ignoratio elenchi
thesis
special pleading
paralogism
hysteron proteron
circular argument
misproof
counterpremise
butt heads
subtility
vicious circle
constatation
Q.E.D.
self-evident truth
basic assumption
specious
wank
premise
negand
pseudoproposition
noncontradiction
negatum
pretence
postulate
counterargument
sophism
arguer
sophistication
hypothetically
cavil
anticonceptual
anticonceptualistic
Irish bull
enthymeme
argumentum ad fidem
casuistry
dispute
where someone is coming from
bite the bullet
take the meaning
quiddity