The event types O→M named « acts » brings together the 6 primary flux taking their source in the pragmatic dialectic and their destination (U, A) in the semantic dialectic (S, B, T). With a virtual source, the three semantic destinations produce the three major modalities (know y, want o, can e). With an actual source, the three semantic destinations generate the semiotic, social and material worlds: to enunciate u, to commit a and to make i.