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| Mirrors > Home > ILE Home > Th. List > infeq1d | GIF version | ||
| Description: Equality deduction for infimum. (Contributed by AV, 2-Sep-2020.) |
| Ref | Expression |
|---|---|
| infeq1d.1 | ⊢ (𝜑 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| infeq1d | ⊢ (𝜑 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | infeq1d.1 | . 2 ⊢ (𝜑 → 𝐵 = 𝐶) | |
| 2 | infeq1 7077 | . 2 ⊢ (𝐵 = 𝐶 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1364 infcinf 7049 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 |
| This theorem depends on definitions: df-bi 117 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-rab 2484 df-uni 3840 df-sup 7050 df-inf 7051 |
| This theorem is referenced by: zsupssdc 10328 xrbdtri 11441 nnmindc 12201 nnminle 12202 lcmval 12231 lcmass 12253 odzval 12410 nninfdclemcl 12665 nninfdclemp1 12667 nninfdc 12670 bdmetval 14736 bdxmet 14737 qtopbasss 14757 hovera 14883 hoverb 14884 hoverlt1 14885 hovergt0 14886 ivthdich 14889 |
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