| Mathbox for Richard Penner |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > brmptiunrelexpd | Structured version Visualization version GIF version | ||
| Description: If two elements are connected by an indexed union of relational powers, then they are connected via 𝑛 instances the relation, for some 𝑛. Generalization of dfrtrclrec2 15095. (Contributed by RP, 21-Jul-2020.) |
| Ref | Expression |
|---|---|
| brmptiunrelexpd.c | ⊢ 𝐶 = (𝑟 ∈ V ↦ ∪ 𝑛 ∈ 𝑁 (𝑟↑𝑟𝑛)) |
| brmptiunrelexpd.r | ⊢ (𝜑 → 𝑅 ∈ V) |
| brmptiunrelexpd.n | ⊢ (𝜑 → 𝑁 ⊆ ℕ0) |
| Ref | Expression |
|---|---|
| brmptiunrelexpd | ⊢ (𝜑 → (𝐴(𝐶‘𝑅)𝐵 ↔ ∃𝑛 ∈ 𝑁 𝐴(𝑅↑𝑟𝑛)𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | brmptiunrelexpd.r | . 2 ⊢ (𝜑 → 𝑅 ∈ V) | |
| 2 | brmptiunrelexpd.n | . . 3 ⊢ (𝜑 → 𝑁 ⊆ ℕ0) | |
| 3 | nn0ex 12510 | . . . 4 ⊢ ℕ0 ∈ V | |
| 4 | 3 | ssex 5292 | . . 3 ⊢ (𝑁 ⊆ ℕ0 → 𝑁 ∈ V) |
| 5 | 2, 4 | syl 18 | . 2 ⊢ (𝜑 → 𝑁 ∈ V) |
| 6 | brmptiunrelexpd.c | . . 3 ⊢ 𝐶 = (𝑟 ∈ V ↦ ∪ 𝑛 ∈ 𝑁 (𝑟↑𝑟𝑛)) | |
| 7 | 6 | briunov2 44335 | . 2 ⊢ ((𝑅 ∈ V ∧ 𝑁 ∈ V) → (𝐴(𝐶‘𝑅)𝐵 ↔ ∃𝑛 ∈ 𝑁 𝐴(𝑅↑𝑟𝑛)𝐵)) |
| 8 | 1, 5, 7 | syl2anc 595 | 1 ⊢ (𝜑 → (𝐴(𝐶‘𝑅)𝐵 ↔ ∃𝑛 ∈ 𝑁 𝐴(𝑅↑𝑟𝑛)𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 = wceq 1567 ∈ wcel 2149 ∃wrex 3095 Vcvv 3461 ⊆ wss 3911 ∪ ciun 4958 class class class wbr 5111 ↦ cmpt 5194 ‘cfv 6537 (class class class)co 7411 ℕ0cn0 12504 ↑𝑟crelexp 15056 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-1cn 11158 ax-addcl 11160 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-reu 3376 df-rab 3423 df-v 3463 df-sbc 3752 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7414 df-om 7863 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-nn 12234 df-n0 12505 |
| This theorem is referenced by: brfvidRP 44341 brfvrcld 44344 brfvtrcld 44374 brfvrtrcld 44387 |
| Copyright terms: Public domain | W3C validator |