add IteratedSuspension to Types
small NConnected cleanups
fix LoopSpace for last commit
minor Freudenthal cleanup
remove newly unnecessary uses of J
use a clearer method of working with groups
cohomology: small change to appease 2.3.4 typechecker
cohomology: weaken C0 axiom form; improve universe level setup
cohomology: groups are abelian
move defs of various pointed types from lib.types.Pointed to their respective type files
add pointed pushout
pullback pathspace beta, pointed pullback
pullback preserves hlevel
pullback group
more pullback group
fix ptd-cst definition
name the pre- and post-composition equivalences
any map to Empty is an equivalence
triangle identities for coe-equiv
separate lemmas for dependent paths in the universal fibration