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| Mirrors > Home > MPE Home > Th. List > addasspr | Structured version Visualization version GIF version | ||
| Description: Addition of positive reals is associative. Proposition 9-3.5(i) of [Gleason] p. 123. (Contributed by NM, 18-Mar-1996.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| addasspr | ⊢ ((𝐴 +P 𝐵) +P 𝐶) = (𝐴 +P (𝐵 +P 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-plp 10963 | . 2 ⊢ +P = (𝑤 ∈ P, 𝑣 ∈ P ↦ {𝑥 ∣ ∃𝑦 ∈ 𝑤 ∃𝑧 ∈ 𝑣 𝑥 = (𝑦 +Q 𝑧)}) | |
| 2 | addclnq 10925 | . 2 ⊢ ((𝑦 ∈ Q ∧ 𝑧 ∈ Q) → (𝑦 +Q 𝑧) ∈ Q) | |
| 3 | dmplp 10992 | . 2 ⊢ dom +P = (P × P) | |
| 4 | addclpr 10998 | . 2 ⊢ ((𝑓 ∈ P ∧ 𝑔 ∈ P) → (𝑓 +P 𝑔) ∈ P) | |
| 5 | addassnq 10938 | . 2 ⊢ ((𝑓 +Q 𝑔) +Q ℎ) = (𝑓 +Q (𝑔 +Q ℎ)) | |
| 6 | 1, 2, 3, 4, 5 | genpass 10989 | 1 ⊢ ((𝐴 +P 𝐵) +P 𝐶) = (𝐴 +P (𝐵 +P 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1570 (class class class)co 7410 +Q cplq 10835 +P cpp 10841 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 ax-inf2 9606 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-we 5616 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7859 df-1st 7982 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-rdg 8393 df-1o 8449 df-oadd 8453 df-omul 8454 df-er 8690 df-ni 10852 df-pli 10853 df-mi 10854 df-lti 10855 df-plpq 10888 df-mpq 10889 df-ltpq 10890 df-enq 10891 df-nq 10892 df-erq 10893 df-plq 10894 df-mq 10895 df-1nq 10896 df-rq 10897 df-ltnq 10898 df-np 10961 df-plp 10963 |
| This theorem is referenced by: ltaprlem 11024 enrer 11043 addcmpblnr 11049 mulcmpblnrlem 11050 ltsrpr 11057 addasssr 11068 mulasssr 11070 distrsr 11071 m1p1sr 11072 m1m1sr 11073 ltsosr 11074 0idsr 11077 1idsr 11078 ltasr 11080 recexsrlem 11083 mulgt0sr 11085 map2psrpr 11090 |
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